Pardon me for being an apartment dwelling city slicker, but I've got some basic homestead questions: 1) What's a homestead? Is it like squatting? 2) How do you get a homestead? 3) How much does it cost? What is cheapest way to homestead? 4) Can it be done for free? 5) Can you homestead on public land? 6) Can you homestead in an improvised shack, garden shed, etc.?