I use Goodwill for this. I take things there when I don't need them anymore, and I go there looking for things I do need. Sometimes it feels like I'm just renti

I use Goodwill for this. I take things there when I don't need them anymore, and I go there looking for things I do need. Sometimes it feels like I'm just renting from them, when I donate something there, buy it later, then donate it again when I no longer need it.