For the annual cycling pilgrimage to Wichita Falls this year we took an RV. This one had all the bells and whistles you need on a long drive, including:

This mode of transport is mighty comfortable but not very environmentally friendly, or cheap to run. Until driving this vehicle I didn't know why they had limits on the amount you could spend at a gas pump as I've never been anywhere near those limits. However with this beast we were filling up regularly (averaging around 8mpg!!) and always hitting the limit:

One top tip when packing up an RV after a stay: Careful when you disconnect this hose:

We had to hose down the ground to get rid of the sweet corn. Funny thing is, no-one had sweet corn!