I've commenced movin' totes this weekend. I'm using a flatbed made out of a kid trailer. I simply removed everything but the base and added a board across the middle. It holds together well, but isn't much fun uphill. I've gotten it up to 200 lbs so far with four totes. One of the tricks is not to bungee the totes too hard or the pressure of the bungees will squish them down on either side of the support board. They really don't need a tight bungee anyway. A loose one is more than enough to keep them on board. I've noticed it's best if you bungee them all to each other so they function as a single large box. That way they're too heavy to hop out.