A well made folding step platform for the back door. A simple rack to fit on the ladder to carry chairs and the folding step. A small 300 to 500 watt inverter wired directly to the battery. Mounted in a convenient spot to charge stuff laptops, phones ,DVDs etc.
Covers for the hatches in the head, and the fantastic fan so that their useful in rain.
Inside/outside thermometer thingie some have atomic clocks and other weather sensors with calendar features.
We have a wired in rear camera that we used constantly underway. It is very useful particularly on the Interstates.
A good first-aid kit with an instruction sheet for CPR.
A hand operated bike air pump. We also carry a 110 volt compressor from Northern Tool that will air up our 19.5" 'H' rated tires with Rickson wheels. Along with a voltmeter, some hand tools in a small box and a similar box with adhesives, spares, tape , fasteners etc. A selection of spray lubricants WD40, slideout lube, silicone spray etc.
A selection of flashlights. I have a hand held torch in a wire basket mounted over the rear door. We also fitted a number of clothes hooks at various spots and some of the tape on hooks. We also attached a few pictures with doublesided tape.
I mounted a small rechargable hand vacuum that stays plugged in, under the fridge. It's a big help. I covered the wire with tape backed molding, to keep it neat.
It's a lot of fun fitting out and figuring out the needs.