Travel Hacks Cheat Sheet

Travel tips and hacks — flight booking, accommodation, packing, jet lag, currency, safety, and money-saving strategies for smarter travel.

Last Updated: July 15, 2025

Flight Booking Hacks

HackDetails
Book 6-8 weeks outSweet spot for domestic — international: 2-4 months
Search incognitoAirlines use cookies to raise prices on repeat searches
Tuesday/Wednesday flightsCheapest days to fly — Sunday is most expensive
Flexible datesUse "Whole Month" search on Google Flights — +/- 3 days can save 50%

Jet Lag Formula

DirectionStrategy
Flying EastGo to bed earlier 3 days before — avoid morning light, seek afternoon light
Flying WestStay up later 3 days before — seek evening light, avoid morning light
On the planeSet watch to destination time immediately — eat and sleep on that schedule

Money-Saving Tips

TipWhy
Use local ATMsBetter exchange rate than airport kiosks — DECLINE the ATM's conversion rate
Travel insurance$50 policy vs $50,000 medical evacuation — not optional
Free walking toursTip-based — great orientation on day 1, bring €10-20 cash for the guide
Pro Tip: The single best travel hack: learn 10 words of the local language. 'Hello, thank you, please, excuse me, how much, where is, bathroom, water, beer, goodbye.' Locals will treat you completely differently. 10 words opens doors that English alone cannot.
← Back to Data Science & ML | Browse all categories | View all cheat sheets