I actually have a small action packer. Not obvious from the website maybe, but it is still way bigger than that little tub I have. (My son's scout troop used the bigger Action Packers to pack camping gear- that's where I got familiar with them.) I got the small one at Walmart several years ago and haven't seen them there since. I may try to rig it up for a longer trip some time.

I was by Northern Tool and Supply, and they had some generic version of the Action Packer that looked pretty decent as well, two different sizes.