The other day I bought a little D-ring key holder thinking it would serve a particular purpose.
It didn't, and I stood there looking at the ring and wondering what to do with it. It's a nice ring, so I didn't want to throw it away, and it doesn't need to be recycled since it works fine, but on the other hand, since it isn't what I need, it is just junk cluttering up my house.
It led me to realize that there is a category of stuff that is neither trash nor recyclables, good stuff you don't need but which might be useful to someone else but is too inexpensive to bother selling.
So... what if cities or community organizations (churches, Rotary clubs Lions clubs, whatever) sponsored junk exchanges ("treasure exchanges?") two or four times a year at a local park or parking lot. You could bring your not-being-used stuff for other people to take home and then pick through everybody else's discards to find things you might need.
Wow! I'd give my little D-ring - and a lot of other stuff - in a flash, knowing it would have a good home. And it would declutter my house and I might even find something useful, and for free!