I'll re-visit #packingtips for specific destinations in future posts, but for any trip, I start with the necessities and then add personal items (e.g. clothing basics, footwear, toiletries). I try to avoid checking my bag, but it's not always possible.
For International travel - you obviously need your passport. I like to carry my passport, global entry card, credit cards etc in my passport wallet, which has a special film embedded that'll protect my documents from unauthorized RFID readers. It's a must or you can find a shield, which is cheaper and easier to stuff in your pocket. I can store copies of my hotel confirmations and tickets just to be safe too! For international travel - check if a visa is required before entry.
Besides my phone for pics - I bring my Canon Camera and if I'm lucky my brother, Marc Scarioni because he's my personal photographer. Don't forget the charger!
Rav Power is a fantastic portable charger with a built in cable.
Noise Canceling Headphones - Bose is the best!
Melatonin because jet lag is real.
Advil - I've never not needed Advil on a trip.
You never know when something won't sit right or when you've gone a little too hard at the local bar - pedialyte packets are a must to keep you hydrated.
Journal - a new "must have" item. I wish I had written more years ago.
Hand Sanitizer or Wipes - isn't this a no-brainer?
This Secret Freshie is so easy to toss into a carry-on or purse.
Moisturizer + SPF.
Last but not least, it's all about facial sprays - a pick me up on the road. Guys may not admit it, but they need the spray too.
If you have space - throw in a book/kindle or game. You'll thank me during a flight delay or hanging out with friends.