You generally want something that you can just pick up and go; and I'd worry that a large plastic tote would be bulky and awkward. Instead I would suggest that you stick with the carrier, but also perhaps pack something like these
. Theyre like the wire grids used for C & C cages, but plastic - so you can set them up for even the most determined of hedgehogs and they will be unable to climb out of them. You could put them in a bag along with his wheel, and it'll save you space in your car in addition to the bag being easy to just grab and go. It ensures that if you do need to leave for an extended period, Augie wont be confined to his carrier and will essentially have a home-away-from-home. Just an idea!