I don't know what Outdoor Retailer Show Shannon is attending, but my first day at Utah's Salt Palace was filled with oversized creature comforts.
This is the Portable Camp Shower by Zodi. For $160 you can have a piping hot, instant push button, propane-fired shower anywhere. Poster of pretty lady not included.
Check out the AirBedz, an air mattress made for the bed of your pickup truck complete with wheel well cutouts. Twelves inches of padding. Price dependent on make and model.