Built a drawer system for the back of my wife's 4Runner and got to test it on our road trip to Austin this past weekend.
I designed it with multi-purpose in mind. I know that the vehicle will get used for family vacations as well as camping trips. I also have 1 complaint about the 4Runner....absolutely zero hidden storage compartments. If you have something, it's in the open to anyone who looks in.
Purpose 1: Mobile Mommy Station. Drawer on the left is perfect dimensions to fit a baby changing pad with cover. Drawer on the right can hold diapers, wipes, etc. I still need to figure out how to keep these from sliding around. I originally intended to run some channels in the side to that I could add dividers, but kind of forgot in the excitement of putting the thing together.
Purpose 2: Camping. Will hold ample recovery gear, camp stove, firearms, etc.