As a few of you know, I'm modifying my class c to better suit me. I have a ton of stuff coming out and I've seen videos of items available at the rtr for anyone who needs them. What type of stuff is most needed sought after? I want to make sure I don't throw away anything that can be recycled. So far I've saved a basic 12v house battery I've never used and the foam mattress. Those were obvious to me, but what gets selected or asked for more than others?