I keep an engineer's notebook.
Everything is in it. It is almost always with me. From grocery
shopping lists to
electrical schematics to pretty woman
phone numbers to doodles and
cruise logs entries. I fill one notebook up in about a year. At the end of the year the best pages get copied into the ship's records.
Involving a computer in this would be far to cumbersome for me. Although I do use a
iPhone for notes and pictures when that's an advantage.
As far as where things a stored on the
boat: Well searching is a form of entertainment. It does help to be very orderly. Also I go thru every locker, every one, every bag and box, at least once a year checking for roaches, rust and the usefulness of the contents.