I found err proof way to break down camp area to travel

My little trick is a final walkaround. With three important points registered: Look up (antenna, branches etc.), look around (open compartments etc) and look under. It is simply essential that I do it, and have it burned into brain that I did it. Kind of like a very conscious confirmation I tightened the drain plug, or locked my house when I left. If I cannot come up with those memories, I'll do it again just to be sure.