If you have a driveway that will accommodate your FW, I suggest you do a couple of nights "camping" in your driveway. When you find you need something that you forgot, run in the house and get it, write it on a list. Then, later, go purchase one to replace the one you swiped.
I am going to contradict Veebyes and suggest your first trip be a short one. The reason is that it is stressful towing when you are new at it. A short trip allows you to get some experience under your belt without feeling that you are committed to a long haul. Once you have merged onto the interstate, or changed lanes, etc., a few times, you will begin to be more confident for the next, maybe longer, trip.
Good luck with your new baby. I wish you many carefree miles and many happy memories in your RV.