Oakman has very good advise. But, I'm going to share our situation with our 5th wheel. Currently winterized, we have our 3 slides retracted. I built shore power out to our driveway, so periodically, we've been known to go exercise the slides, even turn on the tv and do some light cleaning or tinkering....that always leads to, ok, when and where are we going to go next with this baby??!?!
So, if you're situation has it where the unit is out of sight, out of mind......? Seal 'er up the best you can. If you're making payments like we are, I've GOT to put my hands on it, check on it, play with it a bit. Seems to make the "storage period" go faster and de-winterizing go easier. Part of tinkering....?...dry lube the slide rails and monitor the house battery/s...(advantage to home shore power).
Best wishes and happy RVing