If you haven’t already, don’t forget to winterize your camper.  Remove all bedding, towels, toilet paper, paper towels, tissues, napkins and anything else animals can use to keep warm or make a bed over the winter.

Drain all your water lines and holding tanks.  Run RV antifreeze through both your hot and cold lines.  Don’t forget your outside shower.

Maybe remove your battery and store it in the garage or basement,

What else am I missing?