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I really didn't want to be all uncool and begin with cozzie livs but she's living her best life right now — and we're bankrolling it.

With every hard-earned cent stretched across pricey fuel, groceries and even basic b*tch trims, it's no surprise travel has hit some turbulence, officially tipping into luxury territory.

But what happens when that special occasion or long overdue break rolls around? Well, it's time to call in a bit of backup to make sure every precious dollar works harder for comfort, time and experience.

Welcome back, Girl Math.

Watch: Mamamia's travel etiquette guide. Post continues below.

Now before you quietly close this tab on financial principle, let me reacquaint you with the highly sophisticated yet emotionally freeing fiscal model known as Girl Math. It's the liberating philosophy that dictates if an expense offsets a bigger bill down the road, preserves your time, or upgrades your entire existence, it's not a cost — it's an invaluable asset.

You see, the price of a flight doesn't exist in isolation. It sits alongside everything else you spend to get there comfortably – airport food and drink, baggage fees, neck pillows, emergency chemist runs, duty free comfort buys and crucially, the cost of how you feel when you arrive. 

Then factor in the 'economy tax' — the emotional, physical and spiritual price you pay for a cheaper fare in cattle class. These charges usually involve swollen hooves, straddling strangers just to queue for the toilet like a sad little Eeyore, sleeping like a human bobble head and the unmistakable snore of a belligerent neanderthal three rows back.

Once I crunched the numbers on those aforementioned micro-traumas, it became clear the maths just wasn't mathing.

So, naturally, I buckled up for a business class flight to KL for a tropical getaway in Malaysia. 

A one-way business class flight from Sydney to Kuala Lumpur on Malaysia Airlines typically starts from $3,319. And thanks to Girl Math, here's how I didn't mentally spend $3K. I simply offset it.

Perk number one: the airport lounge.

A business class ticket unlocks an exclusive sanctuary — the airport lounge. From gourmet dining and curated bar selections to private shower suites and nap stations, there are savings for days. And if you look closely at the Girl Math ledger, this is where you can wipe off some of the exxy ticket price.

We've all been through enough airport terminals to know the 'captive audience tax' (we have nowhere else to go) sends food and drink prices soaring, with a glass of wine costing on average between $12-18 and a basic bistro meal $30-40.

Add in snacks, gum and bottled water, and you've racked up another $20. Merely standing near a coffee machine can liquidate $10 with add-ons.

So instead of forking out sky-high prices for average food court fare, look at the lounge as a stimulus package, offering a free buffet dinner, drinks and desserts.

When I stepped into the Malaysia Airlines Golden Lounge, I more than enjoyed my money's worth. Sampling the Live Noodle Station, where dishes are prepared to perfection right before your eyes, plus the delicious selection of cakes, pastries, and traditional Malaysian kuih. I washed it all down with a visit to the Sports Bar.

But the real dividends come from the amenities; private shower suites, lounge chairs, charging stations and nap rooms — saving both your sanity and sanitation.

Deduction: $88.

Emotional relief of not having to snag a seat on the floor next to a power point: priceless.

Perk number two: the Champagne.

Once you've strutted down the business class aerobridge and escorted to your personal suite, you're immediately handed a glass of Champagne. I was treated to a fine French drop from Christian Naude, retailing for around $40 per bottle. 

Alcohol isn't strictly 'unlimited' in business class, but it's certainly free-flowing, so calculate your own ROI on that one.

Deduction: $40 (Drink Responsibly).

Perk number three: the gourmet dining & entertainment.

At cruising altitude, the economics continue improving, with gourmet à la carte dining, snacks on demand and restaurant-style table settings and service.

As soon as you pull out your extended tray for mealtime, a white tablecloth is elegantly whipped over the tray and later set with real cutlery and serviettes. From that point forward, the inhaling begins, from melt-in-your-mouth Malaysian satay sticks to Nasi Lemak prawn sambal and cheese platters.

Since you land fully fed and watered (instead of biologically bankrupt), you're able to bypass the 'survival-mode' spending at those achingly exxy airport convenience stores — saving you as much as $50 once you factor in the exchange rate and international transaction fees.

That's an immediate rebate back into your vacation fund before you've even cleared customs.

And don't forget the In-Flight Cinema Subsidy. With a sizeable 17.3 inch 4K display screen and noise-cancelling headphones that silence the 'economy roar,' you're basically saving on a premium movie date, only the popcorn is gourmet and the seat actually reclines 180 degrees.

Deduction: $50

Perk number four: the luxury amenity kit.

Now the luxury amenity kit from Aspinal of London x Payot is where Girl Math really takes flight. 

Featuring premium products from French skincare brand Payot, including lip balm, pulse point roller fragrance, facial mist, moisturiser, eye mask, socks, travel essentials and a gorgeous navy blue Aspinal of London pouch. 

That's basically your entire chemist panic-buy list, delivered to your seat for free. Perhaps more importantly, you're also avoiding 'Airplane Face' from the dehydrating and ageing cabin air — saving you hundreds in 'smash repairs' at the clinic later. 

There's no RRP on this luxury kit, but some internet sleuths claim it was previously sold on Malaysia Airlines' flagship e-retail store, Temptations, for around $35 AUD (RM99) back in 2021. More recently, the kit is selling for $45 AUD on eBay.

Deduction: $45

Perk number five: the free Wi-Fi.

While international in-flight Wi-Fi is being rolled out across most major airlines, the availability changes depending on the carrier, the plane, and how much you're willing to pay.

Some airlines offer it free for everyone, others gate it behind fees or loyalty perks, and many only give you the basics, like messaging, unless you upgrade.

Malaysia Airlines A330neo offers complimentary Wi-Fi with unlimited data in business class, meaning you can scroll, message, or pretend to work without panic-buying access mid-flight. 

In fact, MH offers free, unlimited Wi-Fi on the A330neo for all passengers. 

Elsewhere, economy passengers can expect to pay anywhere between $15 and $35 AUD for international Wi-Fi, depending on the airline's technology and the duration of the flight. 

Deduction: $35.

Perk number six: the baggage allowance and fee structure.

Baggage allowance isn't one-size-fits-all; it depends on your route and fare type. And let me tell you at the pointy end of the plane, over packing isn't a financial burden — it's part of the package.

Malaysia Airlines 'business basic' generally offers passengers 40kg of checked baggage allowance (2 pieces), plus two cabin bags up to 14kg max combined (7kg each).

Comparatively, 'economy basic' generally offers 25kg total checked baggage and one carry-on bag up to 7kg. 

Malaysia Airlines has a very specific 'zonal,' per kg fee structure that can turn a bargain flight into something more spicy. For example, from Australia (Zone 4) to Malaysia (Zone 1) it's $43-44 AUD (USD $31) per kg if you exceed the baggage weight limit at the airport. If you are over 5kg, you're looking at more than $200 just for that rigid toiletry bag.

MH passengers can, of course, secure 20% off the extra baggage fee when purchasing online or through the call centre at least 24 hours prior to departure.

Deduction: $200.

No baggage fee anxiety while simultaneously being spared from suitcase Tetris and/or wearing multiple outfits on the plane – incalculable. 

Perk number seven: the Frequent Flyer Points.

Business class is the only place where the more you spend, the more you earn. Since you're racking up Frequent Flyer Points and Status Credits, you are effectively pre-paying for your next vacation.

That's where the maths gets a glow-up and suddenly the spend starts to mentally equalise.

Enrich is the loyalty program tied to Malaysia Airlines. Points are earned using a spend-based 'flight multiplier' system, meaning the more you pay and the higher your tier, the more points you collect. For instance, a fare of around AUD $3,000 (RM8,600) might return roughly 12,900 points for entry-level Blue members, rising to around 21,500 for Platinum, though exact amounts can vary.

Separately, Elite Points determine your status level and are calculated based on where you fly and what class you're in.

Business class is the only financial ecosystem where extravagance is actually an efficiency play. By racking up almost 13,000 points, you aren't just flying; you're contributing towards your next overseas trip. 

Perk number eight: the fully-flat bed.

The A330neo business class features spacious mini-suites with privacy doors, direct aisle access and seats that transition between upright, lounge and fully-flat bed mode. 

I can confirm the fully-flat bed is the secret sauce to combating jet lag. For the first time in my life, I experienced deep sleep on an aeroplane without my head spinning around like The Exorcist. I was also spared from the mass swelling event that usually takes place at the back of the plane, sporting next to no fluid retention or bloating. Shooketh scenes.

Proper sleep on a long-haul flight means you don't lose the first day of your holiday recovering from travel and perhaps more importantly, your feet don't resemble the inflatable rafts under your seat.

By landing fully rested, you've effectively executed a time-travelers' arbitrage. Instead of losing your first 24 hours to a 'jet lag-induced coma', you get to hit the ground running. Thus, virtually dodging a $400 + 'recovery day' bill, including Ubers, caffeine, takeaway and cancelled plans.

Deduction: $400.

Perk number nine: the 'Bonus Side Trip'.

Finally, thanks to Malaysia Airlines' Bonus Side Trip, you can double your adventure with a stopover in Malaysia and enjoy a flight to one of eight local destinations like Penang or Langkawi at no extra fare — just pay the taxes.

Whether transiting through Kuala Lumpur or planning an extended stay, travellers can explore a second Malaysian destination effortlessly, saving you hundreds in the process. 

Deduction: One flight = two destinations 

The final girl maths calculation.

One way business flight: $3,319

• $88 Lounge food & drink 

• $40 Champagne

• $50 In-Flight Gourmet Dining 

• $45 Luxury Amenity Kit

• $35 Wi-Fi

• $200 Baggage Allowance

• $400 Fully-Flat Bed 

• Frequent Flyer Points 

• Bonus Side Trip

Final Girl Maths price: $2,461 + Frequent Flyer Points + Bonus Side Trip.

Disclaimer: These calculations are based on the undeniable logic that if you disembark looking and feeling like you haven't absorbed cabin pressure personally, this wasn't long-haul travel, it was simply self-care at altitude. Any loss of funds is temporary and will feel spiritually reimbursed once your Frequent Flyer points hit. 

Of course, we all know you can absolutely do an overseas trip for far less and, for many people, travel isn't even on the horizon this year. But if you are going to lean into a once-off treat, this is one way to make the spend feel a little more justified.

Listen to the latest episode of Mamamia Out Loud, what women are actually talking about. Post continues below.

After all, when one flight serves as a restaurant, bar, bedroom, a points-generating machine for an entire second destination and an act of kindness to yourself – it's worth considering, even in this economy. 

Feature image: Supplied.'

The author travelled as a guest of Malaysia Airlines, but all opinions are their own.