Under Cover Swing Case Toolbox

Last camping trip there was a guy a few sites over with a 350 dually towing a big 5er. What he did that I thought was neat was installed a few magnetic strips on the side wall right where that swing box would go. Kind of like how you store kitchen knives on a pair of magnet strips, he had a few screwdrivers, crescent wrench, etc on the strips. I guess they must stay there going down the road, and they're probably the couple hand tools he needs frequently. Sorry didn't snap a pic, was on my way to the showerhouse and didn't have my phone...