It's called a safety deposit box. Rent one at your bank, keep your valuables in it until you've settled down.
A trailer is a terrible pace to keep valuables; especially if they do thousands of dollars damage with a crowbar breaking in.
A " NO VALUABLES INSIDE" sticker on the door is a good thing to have on the road.
Per Mare, Per Terram and may all your campaigns be successful.
“It’s a recession when your neighbor loses his job; it’s a depression when you lose your own.” "Harry S Truman"