I purchased a small shop vac and plumbed it into the garage area with some left over built in parts. The outlet is installed in a pantry cabinet...The shop vac unit tucked in behind the panels where the water pump is (sorry no pic). It's turned on remotely via the contacts in the vac wall outlet...
Thought I better cover the wood on the stairs before the dogs scratch the life out of them...since they are an odd shape, I picked up some cheap rubber back carpet runner at Walmart and custom cut them to shape of the tread...dogs like them as well as they're not slippery like bare hardwood.
I use a 12V muffin fan (runs off of a AC wall adapter) mounted to a piece of plastic that is cut to the size of the grease filter on the range hood. This fan runs while the 5th is parked on the pad in the yard to keep the trailer aired out.
Created a panel that has a battery disconnect, a 1000W inverter made from an old Powerware UPS, and a wireless router (black box on top of UPS). Wireless router is for a wireless IP camera that I use as a backup camera...my monitor in the truck is a small laptop, but have used an iPod touch...