propane/gas can hauling

In the back of your suv's and Trucks having some slight indention in the floor or bed, and 2 hooks on the floor beside it and to close together up on the wall or bed side so you could but a gas can there and run a small bungie over the top and around the sides sunigging it agains a bedside that way it doesnt slide or tip while hauling preventing gas from spilling out... if you thing about it most propane tanks, and gas tanks have set sizes.. it would be easy to make it work.