I also make a few gingerbread houses - this year I made 8 or 9 houses. I've always made triangular teepee-like houses since I was very little, not houses with 4 walls and a roof. This type is much more stable and a lot less work. While you need more than one person to hold all the bits up as they dry for the 4 walled house, I found I can make mine just by myself.
I'd like to share a few photos of a gingerbread house I made this year; this one was for my family.