Ok, well there has been a lot of stuff about houses, they are really cool & good for people who do not really travel allot, but what about the rich nomad, or the traveling ranger?
If you can afford it, a tent could be a set up almost any ware. & Can also be a home away from home. We could have different sizes & prices; possible functions could be protection from monsters & HP/Mana recovery etc.
Some areas like towns may be prohibited to set up a tent unless you own the land, but most of the wilderness is ok...