Another couple we go camping with uses some strange high strength velcro system in one of their hanging closets. They put extra blankets and towels on it and it works great! They put the system together so it's not something you can buy a kit for. Heavy duty velcro and shelve supports from Lowes. I don't need the extra space or I'd do it.
2013 Jayco Eagle 328 RLTS
2012 Ford F250 6.2L 4x4 CCSB W/Air Lift air bags
2002 Coleman Bayside Elite (traded)
Me, Momma and Charles (RIP buddy)
And introducing Sofie!! ;)