Many years ago DH had me make a bag to hold the jumper cables in our car. One trick: he wanted something that wouldn't move around in the trunk. I made a fitted bag and sewed a couple of strips of heavy duty velcro (prickly side) on one side. Worked great. It's really a big deal now that we have a van. One less thing to worry about getting under foot or flying around when the brakes are applied. Good luck. - Shirley