I just thought of something else I would recommend for a first trip out. This is not an original idea by any means. I'm sure I read it on the forum some time or another. Anyway, take something to write on so you can make a list of things you discover you would like to have had with you. I have a small whiteboard that I bought at the dollar store for that purpose. At the end of a trip, I snap a picture of it with my cell phone.
One other suggestion... When I first bought the Colby T, I took a quick overnight camping trip to a close by park. I sat at the dinette with all that huge stack of owners manuals and read through them. I ran through all the operations to experience them: turning on the hot water heater, filling and draining the tanks, opening and closing the awning, converting the dinette to a bed, raising and lowering the antenna, etc. I even called the dealer when I couldn't get the emergency exit window to open.
This practice could be done at your house, if you have room for your camper.