A couple of suggestions:
1. look for aftermarket shelf systems or "hammocks" for gear that connect to the end poles of the bunk ends.
2. store extra stuff in totes and keep them in your tow vehicle.
3. recreational toys can be stored in totes and kept under trailer.
4. Using a small bar fridge kept on a small table or picnic table under the trailer awning can really help in having room for food and drinks.
5. They're not cheap, but a good set of nesting cookware can save a lot of room.
6. If you do your cooking outside, design & build or buy an outdoor kitchen box that will hold basic cooking items that stay packed when in storage, and easy to move outside and place on table or leg system.
7. Learn to roll up clothing...teach kids to roll up one day's clothes together so all they have to do is grab one item that would be underwear, shorts/pants and shirt.
8. Keep dirty laundry in plastic bag, stow in vehicle.
9. Look for any wall space where hooks (Command hooks work well) can be mounted, then used for whatever needed.
10. Each camper should have a toilet kit with needed items, and designed to hang up on a hook so they can dry out between uses.
11. Build or buy a drying rack that can be used when camping. If you can't get one mounted to rear bumper, you can make racks by using suction type clamps (Harbor Tool) and pvc pipe.
Suction cups @ Harbor Freight
