A couple of big ones I have are: Video games, movies, books, tv shows I've watched/played or want to watch/play, what platform they are on, if I've bought them

A couple of big ones I have are: Video games, movies, books, tv shows I've watched/played or want to watch/play, what platform they are on, if I've bought them already Brands and blends of tea I've tried, want to try, tasting notes, preferences for brewing amounts and times Some are just super fancy spreadsheets like serial numbers for expensive electronics I own and when I purchased them.