For anyone who hasn't given Apple Notes a fair shake recently, I suggest checking it out again. It’s recently introduced power features that make surfacing and interacting with notes so much better. Gone are the days when Notes was an afterthought that was tied to your Mail/IMAP.

Some features I like: tagging, smart folders, PDF previews, note linking, and the fact that I can drag-drop nearly anything into a note and store it there. You can also access Notes in a browser at iCloud.com.

All for free, built-in!