I did a coast-to-coast bicycle trip, 75 days, and it cost me $17.50 per day average. That includes campground fees, food, bicycle repairs (tube, chain, brake pads) and three motel days. I stealth camped about half the time and was hosted about five days. If a campground is expensive I try and find someone to split a site. I cook most of my food but did eat some restaurant and fast-food too.

I'm NOT including transportation home, although I could, because it cost me nothing driving someone's car back east for them. Also NOT included is health insurance, and cell phone.