Granted, not very environmentally friendly and you can't fold it but it's difficult to have a dingy that's filled with foam to deflate.

Don't suggest doing it, I just thought it was an interesting solution to a problem.

I've found that when my AB looses air it's the valves. I found that when I really inflate it hard it doesn't loose air as fast. I lubricated the valves and it's a lot better.