There was a similar question posted on the class B forum.  One thing which I've found immensely useful are well sealing plastic tubs, as well as glass/metal ones for foodstuffs.  For bottles of soap and caustic stuff, I put those in a Ziploc bag first.  With everything in tubs, it helps with space usage (especially when sticking), minimizes trouble if a door pops open and stuff falls out, and contains spills, so an "oops" doesn't turn into a messy cleanup.  The glass/metal containers are mainly for rodent resistance.