Most stuff goes in the bin…
This make me sad, there’s always someone who could use the bits, either a local charity that recycles/repairs (or worst of all stores it up and weighs in fro scrap if they really can’t fix/use), or a local youngster who could do with the bits, the absolute worst thing to do is just bin parts 🙁
Often people will pick stuff up from you too so it’s not even like you have to put any effort in, other than send a message/ad saying “I’ve got somE bits” come and get them’
My spares either end up hanging around to fix my own bikes, or being used down at the charity workshop, or given away locally to friends/club members, I do sell a few bits but normally only if none of the above can use them or if they’re worth actual money, in fact you’ve reminded me I need to put another box of stuff together to take down…