J.,
You got on here, right? You made an account right? It's that easy on e-bay as well.
If you have complete sets - you MIGHT have some money, as there are collectors everywhere. So what I would do is spend a weekend going through the tubs, separating them all out - if you have a complete set - take a picture of it and list it on ebay. Start the bidding at .99 cents. Make sure you have it IN A BOX and weighed BEFORE you list it so that you know how much it weighs and select the "postage by location".
If you don't want to do that? Donate them to Goodwill. Take the tax write-off.