I've been using Apple Notes for the past several years. I create a folder for the team I'm on and then a new note for a new project or task I'm working on at the moment. Search works pretty well and it automatically saves and syncs with my phone. I also maintain a TODO note that I update with what I'm working on, usually on a daily basis, and things I need to look at.

I used to use Evernote, but it got unwieldy and Apple Notes did everything I needed it to.