I've given away old shoes that aren't too fucked, usually to schools via teachers that I know. I've recently given away old outdoor clothing to my school but we don't take pupils climbing so my many, many old shoes are currently in a huge box in a cupboard at home. I'm claiming that I'm saving them in case I go DWS at some point again.
In the past I've also given reasonable shoes to a friend who runs a climbing wall but again, they only wanted ones that were in usuable nick, and most of my old ones are fucked.