I HATE throwing stuff out to eventually go into a landfill. My city recycles so I do put all my recyclables into the recycle container. Lately though I learned on a documentary that a lot of the US recyclables go to other countries to be sorted and processed. Waste of energy much? Regardless, the hard plastic caps are not recyclable so those go in the regular trash.
I save lots of unusual things for crafting but I don't have a current need for plastic bottle caps. I got to thinking is there a crafting market for bottle caps on ebay? Of course there is! Why did I waste the two seconds wondering :) Here are sold listings. It's not going to make me rich but it will make me feel good to send this resource on to someone else who will probably use it to craft. One year our art museum collected plastic lids and bottle caps and did a children's art project with them. It turned out really cool. Do you have any other ideas for the caps and lids?