When packing your suitcase, opt for rolling your clothing up as it utilizes space most efficiently.
As a side effect most of your clothes now don't have creases.
More Travel Tips
If you're traveling with glass bottles of liquid in your suitcase, wrap them in a inflatable armbands.
When using an ATM in a foreign country with a different currency, DECLINE the currency conversion.
Typically ATMs will give you an option to accept or decline the conversion rate and conversion fee (in addition to the ATM fee). The conversion rate is set by the ATM owner, and chances are it's higher than you would normally get if you let the processing network handle it.
If you find a restaurant you like when traveling, ask the staff for other restaurant recommendations.
Put your liquid items in Ziploc bags when packing toiletries for a trip.
This will prevent damage to your dry items in case one of the liquid containers explodes.
With many passports, other countries will not let you in if your passport expires within X months of the passport's expiration date.
Where X is typically 6 months. For example, Europe requires passports to expire at least 3 months from departure date.\n\nIf your passport expires in July, and your trip is scheduled for May, you will not be allowed in.
When booking two airline seats, reserve the aisle and window seats.
Many times other travelers won't reserve the middle and you can end up with the entire row (on lower capacity flights).\n\nIf someone books the middle, offer them one of your seats and sit next to your flight companion.