Pack your clothing in an easy to access place. If your RV or camper has clothing storage spaces, utilize those rather than bringing a suitcase. Suitcases will only take up extra space that you could use for other things.
Secure pots and pans in proper cabinets. To ensure they don't rattle around during your trip, you might consider placing them in a large plastic bag, tied tightly.
Pack your dishes securely. You should consider plastic dishes rather than glass ones so that they don't break. You can also wrap these with large plastic bags so that they don't rattle around during your trip.
Secure the awning or tarp close to the door of the RV. That way, when you set up camp, you don't have to search for it.
Secure your lawn chairs in the camper. Bungee cords work well to secure the chairs. You can bungee cord them just just about anything in the RV, as long as they won't slide around.
Ensure that if you bring any appliances from home, such as a microwave or toaster, that they are properly secured so that they don't slide or around or won't become projectiles in the event of an accident.