Is there a charity that can use old computer hardware? I have boxes and boxes of old (but still working, probably) stuff going back 10 or more years - memory modules, cpu's (going back to slot 1), graphics cards, motherboards, floppy drives, zip drives, optical drives, PCI cards, cases, power supplies, etc etc. I can't be bothered to try to sell them on Ebay and from what I've seen they would make next to nothing anyway. If I could just send it all to a charity it would make me feel better than taking it down to the local recycling centre.
My old HDD's I'll probably destroy because I'm not certain about wiping them totally clean.