Put everything away. Consider murphys law and assume that if it can fall or come loose etc, it will. Put heavier items like glass dishes low and to the back of the cupboard. Use various ways to fasten side by side cabinet handles together. it could be a small bungee cord or even a paper tube from a roll of paper towels shoved through 2 cabinet handles.
If you store stuff in the sink put some cloth down first so the vibration doesn't leave ugly wear marks in it. Absolutely make a check list on your phone or something and go over it each time you pack up. As you do it over and over you will get used to it but still use the check list.
When you stop and set up be careful when opening the cabinets or refrigerator for the first time as stuff can come tumbling out.
As far as getting used to driving it, as mentioned above go to a parking lot when it's not busy and practice. Agree on a set of hand signals when one person is outside directing the driver. DONT get excited and argue. It can be very frustrating so keep the mind set of conquering a job that you are both working at TOGETHER. Have the driver get out and walk back to see what it looks like from outside the rig. The person outside doing the directing has to learn about where they can be seen by the driver. Roll the windows down so the driver can hear the emergency STOP word. Watch you tube videos about rig tire placement before making your moves. Ignore the inconsiderate ones who pull up and want you out of the way instantly. Some cant remember that they were beginners at one time. When you are ready to fuel or eat, both of you need go into full aware mode as to how tight gas stations are and how you will get out. Put fuel price out of your mind and put ease of access first. I try to avoid any stations that have you pull in and face the building with cars parked in front of it. Relax and have fun.