One of my Warmshowers guests when I lived in AZ spent most of that winter in Quartzsite, camping on BLM land with the hordes of RVers. He was a true year-round cyclist, logging 8000 miles a year, spending $5000/yr doing it. In Quartzsite, he worked the fields and gleaned when he could for free food, embracing "freeganism." He had nicer equipment than I did, was mentally sound, and had all his teeth--not your typical homeless guy. I remember him talking about spending quite of bit of time in other years in Mexico. He's an interesting "off the grid" guy.