Are you saving and recycling things at home you never thought you would?

I've been reusing paper towels to clean up bird shit with. I just let them dry off and put them in a box and tear off a little corner as needed. We used to use a square of toilet paper to do this but it just seems smarter to save the paper towels, can't use toilet paper twice. I also save all the produce plastic bags to clean up dog shit when my daughters dog comes over. I didn't want to waste my plastic bags from the grocery store since I run out of those fast usually for smaller trash cans.

What have you found to reuse?