Different rig, but some common-sense suggestions: store light stuff (paper goods, shopping bags, etc.) high and heavy stuff (canned items, cookware and pots&pans, etc.) low and close to wheels. Lesser used items stored - in our case since we primarily dry-camp, electrical appliances are under our bed. Go for lots of nested
(Magma cookware) and collapsible
items (bowls, colander, funnel, even teapot). Bottom-line - if you don't use it in a year, get rid of it.