Just finished a 3,000 mile lap and here's the tool that I used nearly every stop:
Big-Reach Pole Hook
I put this hook on a five foot threaded pole and used it constantly to move stuff around in the basement. Made it easy to stow stuff in the middle of the bay. Also great for positioning or retrieving leveling pads.
Boaters use similar devices for grabbing mooring ropes, etc., so a marine supply would be another source of a similar tool.
Runner up on the trip was an auto floor mat that served as a kneeling pad when I positioning leveling pads or getting into the storage bays with the slides out.