No inventory, its not pleasurable to do a spreadsheet on a hobby, that kind of stuff is for work for me. I have found I remember Most of the stuff I have, but on occasion get a surprise, especially when I bought a "lot" of parts for a specific item and a bunch of other stuff came with it. I am now reorganizing the storage to do a better job of placing like parts in one drawer or bin. There are a few things that I need to do that are specific and specialized like a handlebar rack.