How do you keep your annotated bibliographies?

[FruitLover]

I am trying to think of the most efficient way to take notes on the books I read and keep it all in one place. Usually, I take hand-written notes, but I would like to move to an electronic note-taking system so I can access it from anywhere and search by keyword. Do you have any tips on convenient ways to do that? Please share your note-taking experiences.

I know there have been some threads on note-taking, but I'm particularly interested in how you keep record of books in your field and those relevant to your research.

[historyofsloths]

I use Zotero and Evernote. Zotero to save the location of the source, the bibliographic info, and keep them in subfolders so it's not one big list. I use Evernote to take notes on each source. Although Zotero allows you to insert notes for each source saved, I've found that writing all the notes in EverNote and having new "notes" (pages, really) for each source has been incredibly helpful, mainly because I have Evernote on my phone, computer, and I can have it on the tablet I plan on getting for grad school.

[AP]

OneNote. Here are the many times I explained why: 

https://forum.thegradcafe.com/search/?&q=onenote&author=AP&search_and_or=or&sortby=relevancy