2014 Tioga Ranger 25G

Get to know your house battery and converter/charger/auxiliary battery switch setup. voltage at house battery terminals should be 13+ volts while converter/charger is charging the batteries with rig plugged into shore power. When un-plugged and with engine running voltage at battery terminals should be 14+ volts. Unplugged and without engine running, voltage at house batteries should be around 12.6 volts. Check electrolyte levels and replenish as needed with distilled water. Find out if your year/model has provisions for charging the starting battery while plugged into shore power. Many brands/models don't have this. Starting battery may slowly lose charge from devices that draw power while parked for long periods. Get a digital multimeter for checking voltages and a "turkey baster" battery filler. A plug-in AC voltage monitor meter is good to check whether shore power is adequate to run roof AC, i.e. in green zone. Have a system to warn you when the TV antenna is up, and stow it before driving. Change lanes on freeways very carefully using mirrors.
Get long solid metal valve stems installed that make checking tire pressure easy, don't use screw-on valve stem extenders.