May I suggest you explore THIS for a bit.
Oh Sweet Jesus... as if that weren't enough... it turns out they now live full time in a biodiesel fueled RV. While I'm slowly introducing solids (aka letting the kids watch unlimited TV on a towel covered couch surrounded by plastic tubs) I'll surely be obsessively reading this family's accounts of their journey and life on an RV. I'm loving it.
If you thought what they did with a 300 sq ft apartment was amazing... look at what they did to their RV.
Mr F... be afraid be very very afraid... I might have bought an RV by the time you come home tonight.