I had mentioned this guy's http://frominsidethebox.com/ blog in a post about backdoor IRA's a couple of days ago. Since then I've been reading the blog from start to finish and figured it was worth its own thread. It's interesting to read why he started living in a truck in the google parking lot and how his goals for this have shifted over time. His original plan had been to do this just long enough to save enough money to take six months off to travel the world. Now his plan is to try and live like this until he hits 30 or so and has enough money to take off the rest of his life if he chooses and travel the world. He had not heard about MMM or any of the other early retirement websites when he started, but seeing them is what caused him to rethink his goals. He makes a six figure income but saves the vast majority of it.
Basically he has kept his "home" very simple. A bed, an ikea dresser that he added leather straps with snaps to to hold the drawers closed when he makes left turns, a bar to hang clothes on, and a couple of brackets to keep his bike from flopping around if he's driving the truck somewhere. That's it. He showers at the gym every morning, eats most of his meals at his employer subsidized cafeteria and uses the restroom in one of his employer's buildings before going to bed at night so he doesn't need a kitchen or bathroom in the truck. (he no longer parks on the employer campus because he was told to stop, and hasn't disclosed where he parks now, but it sounds like he still parks very nearby.)
He seems to enjoy it and in one Q&A post where he answers readers' questions he talks about getting a lot of questions along the lines of "I'd like to try and see if I can do this for at least X amount of time. How do you manage to deal with the hassles." His response was that if you try and do this with an attitude of "this is a sacrifice and I'm only doing it to save money" it will become an intolerable burden fairly quickly and that the only way to make it (an admittedly very non-standard situation like this) work is if one is capable of viewing it as an adventure, a challenge, something to be enjoyed for its own quirky merits, not something to simply be endured. That said, I don't think I want to live in a box truck in my office's parking lot.* I like the simplicity of it and the savings, but I'm just not sure I'd be willing to go that far outside the mainstream. At least not if I were still working a day job very much inside the mainstream.
*I say this not even taking into account that my employer is not in the suburbs with free parking, but in an expensive to park in downtown neighborhood.