IMO not all towable with rear kitchen have the same problem. But I I know we do. We're getting better and better, not perfect but getting better every trip.
Stuff in cabinets...We were tried of stuff falling out. Wife asked someone who delivers wedding cakes in a van what they used. Lady showed her this
http://www.amazon.com/Duck-1100731-Non-Adhesive-12-Inch-20-Feet/dp/B002AS9NAI Works better than regulator store bought but still not perfect. See if there is anything more "commercial" grade before you order. It was "duck" brand she got but wife says they have even better stuff than link above but I can't find it.
Fridge...Shelves fell down twice. Asked just last week and somebody suggested vinyl tubing on loose fridge racks. Verdict is still out but from Orange county CA to Redwoods in northern CA problem seems to be fixed.
http://forums.woodalls.com/index.cfm/fuseaction/thread/tid/28869554.cfmDrawers and cabinets...Still looking for better ideas than what I've seen so far...right now I'm using Staples big rubber bands. I'm leaning towards using a "barrel lock" and drill a small hole in drawer so it can still slid out.
http://www.homedepot.com/p/Everbilt-2-1-2-in-Zinc-Plated-Barrel-Bolt-15142/202033904And something to think about...I didn't have as big of problem until I upgraded my tires from load range D to E and run them max air pressure (80). I also get a better ride with a full water tank.