Just make sure that everything works properly. If not done recently, have brake fluid flushed and have brake calipers checked for any sticking/dragging. Check fridge cooling unit for any yellow/green stains or ammonia smell and make sure it cools properly on 110vac and propane. Check that RV generator starts and runs properly with roof AC and microwave on. Know procedure to get RV generator power into the RV( plug shore power plug into generator if required)test roof and dash AC. Wait ten minutes to restart roof AC after shutting it down. Get familiar with location of 120vac circuit breakers and fuses for 12vdc systems. Make sure that you have good sewer hose and fresh water hookup hose, and fresh water tank filler. Sanitize your fresh water tank and plumbing with bleach water ( 1 cup bleach to 1 gallon water) , drain, and refill. Make sure low point drain valves are closed tightly or fresh water pump will keep running after refilling fresh water tank. Practice setting up and taking down awning and check it's condition. Make sure it is securely stowed. There are many helpful You Tube RV "how to" videos.