GAS-O-HAUL stores under your seat, in your trunk, even in your center console... FLAT! In an emergency it transforms into a 1 gallon gas container complete with pouring nozzle. Meets all federal requirements in all states. Made in USA. Measures 14" x 6 1/2" x 2" (collapsed)

Also easier to handle while going to get gas for the lawnmower than those plastic containers. (I'm always afraid they are going to tip over and my car will smell like gasoline for the rest of its life.) ;) (via Cool Tools newsletter)