I keep a list of places and countries I want to visit here and I keep various lists of places I liked on Foursquare.
I made a small Siri shortcut to help me pack things for traveling to make sure I don't forgot anything. You can download it here and for me it looks like this:
These photos are why I’m trapped in Tokyo forever now
Traveling with Less Fatigue
Travel Is No Cure for the Mind
Awesome Hacking Spots
Some travel notes by a nomad
Ask HN: Cheap places to live with a good intellectual atmosphere?
Pod Room - Bite-sized Luxury Hotel (SF only) but pretty awesome.
Engineer's Guide to US Visas (2014)
Where is the best place for nightlife you’ve traveled to? (2018)