Even if you have paid for TSA Pre-Check, they can randomly assign a flight where you do not receive it and have to go through full security. Several of us that travel frequently have found out the hard way standing in the Pre-Check line that we were did not have Pre-Check status for that flight and have to stand in a new line. Do yourself a favor and double-check your boarding pass each time.
Having to fit all liquids in a quart size bag can be a challenge. Consider buying Nalgene brand bottles as they are truly leakproof. You can also buy .5 ounce bottles, which will hold plenty of shampoo, conditioner, etc. for even week-long trips. They take up much less room than the standard 1- 3 ounce bottles that usually remain halfway empty. You can buy them at the Container Store or online.
Utilizing your cell phone for calls, texts or data while in another country can be expensive without an international plan set up in advance. To avoid unintended and costly charges, plan in advance for an international package or turn your phone completely off or in airplane mode while traveling internationally.
Passports have an expiration date. Of course, your passport must be valid for the extent of your international trip. However, many countries also require that your passport be valid for a period of time following your trip (e.g., 6 months). Check the requirements of your international destination and your passport expiration date well in advance of your trip.
The name on your airline ticket should exactly match the name on the photo ID used for traveling. Have a middle name on your photo ID? If so, make sure your middle name is on your ticket, not your middle initial. Be aware that the way your name is listed on your Driver’s License could be different from how it is listed on your passport. You can be denied boarding if your names are not a perfect match.
Lead. Travel. Pray. 