I use a small zippered tool bag to hold my hitch and extra convert-a-ball. It's made of nylon so it doesn't slide around. I got mine at Menards, but I see Sears has a set of 2 black bags on sale right now.
I lined mine with some 1/4 foam so it wouldn't wear through.
"Life's journey is not to arrive at the grave safely in a well preserved
body, but rather to skid in sideways, totally wore out, shouting"..holy
crap...what a ride!" - Unknown