I did this myself for a while in my 20's doing projects and then consulting. I've since romanticized it a bit, my experience:

I changed my address to my parent's address for all my credit cards, etc. Getting packages and ordering anything mail order was kind of a pain, especially when they would only send to your billing address. I’d have packages waiting for me for weeks sometimes, not great when you want some cool new thing “now”.

I had flexibility with travel - every weekend I could essentially travel "anywhere" in the US, so every weekend I'd go hang out with friends, relatives, etc. I think even after I moved away from my hometown to take that job, I never got homesick because I was still at every weekend party or event. People would be shocked when I'd say "I woke up in Seattle this morning, I'm off to Austin tomorrow."

When I would come back home, I would have literally a grocery bag full of mail.

After a while you get your life so minimized that the things you do have are incredibly precious, and it made me realize how much "junk" we tend to accumulate otherwise. I think I had a digital camera and an iPod, few other things.

I came to the conclusion during that time that I could spend any amount of money for they key things I wanted because I used them every day - camera, cell phone, computer, watch, bag, etc. I was forced to be hyper-aware of buying anything I'd have to cart around, so I'd buy exactly what I wanted, the first time. I wouldn't "upgrade" anything without having gotten rid of the old item first.

Something that hit me a few times that can really suck - you can be on a project for a long time and you start to build up a "social life" with the people you work with - you hang out after work or on weekends that you are around and they become friends. Then, unexpectedly, the project suddenly gets canceled, or you get re-assigned by the home office to some emergency thing and you end up having to leave - that day - and never come back. After a few iterations of that, it gets kind of old. Sure, you could go back and visit them on weekends, but you don't, and it all gets a little soul-less after a while.

It seemed I really went through clothing during that time - I try not to get suits dry cleaned too often, but when traveling from site to site it seemed they were trashed quickly and looked tired fast.

But yeah, if you can keep from partying away your saved money on weekends, you can definitely sock away some cash and living a nomad life isn't such a bad thing to experience once in life.

I'd also advise getting some sort of fitness plan, be it at the hotel gym, swimming daily, running, whatever. I was much better and happier when I was taking good care of myself and had some discipline in life rather than when I was camped out all weekend in the hotel watching HBO.