What do you store in the 560 under-mattress boxes?

[Bill and Ann]

Hi! New members here. So far we've done two mini-camps (just weekends) in our new 560! We're trying to work out how we want to organize our storage. There's a lot of space under the mattress but it's not terribly accessible. I'm wondering what items you all have found useful to store under there. I looked and no one has discussed this for a number of years, so thought I'd see if how people answer now.

Thanks!

Ann