I use a combination method,,,,,,,,,I used my pc at first, to database the books I had, and to type up an article list for the magazines I had
then I started to make "project sheets",,,,,,,I type up anything that is a reference or possible reference for any certain project,,,,,,I print those out, 3 hole punch them, and store them in binders
whenever I think of anything while looking at a project sheet, or when I get the planned decals, or the planned kit,,,,,,,or pic a specific weapons loadout,,,,,,,,I just write it down right on the sheet
every once in a while, I go through a binder, and type up whatever is handwritten onto the Word doc,,,,,,and then print new sheets,,,,,if a note comes up, I write it on a sheet
since I don't care if my notes are in Word docs or printed, or written by hand,,,,,,,,,I can always find the notes that go with any certain build,,,,,,,,and I can always find the reference pictures I planned to use for any certain build
the Database plus Word doc method makes it easy to "do the bookwork",,,,,and if I remember to grab a binder when I get in the car, I can have a flippable shopping list along with me at the LHS, or flopped open while shopping online, etc
the key to making any system work is to keep it simple, and choose keywords that make searching your database easy to use,,,,,,,,,,if it gets too hard to use, we tend to either not enter new books into our system, or just let it sit stagnant,,,,when "work" piles up with a DB, then it is a chore to catch up, and no longer a simple tool to help us enjoy the hobby