What do you do with patterns you don't want? Sell, Sewing Machines Parts and Sales in Los Angeles

I haven’t been sewing very long, but I still acquired a pattern stash at the speed of light. Now I’m looking at some of these and wondering wtf I was thinking. Other patterns I bought in the wrong size range. I live in a small space and I don’t want to hang on to these wrong-for-mes. I don’t have a problem dropping them off at the nearest goidwill, but I would rather trade or sell them, if I knew where to do that. So, you: what do you do with your Unloveds?