My husband's an engineer, right? As such, he makes a killer cardboard box house. This one has a door, window, secret trap door under the roof, and a chimney. Also, they cut up one of an issue of Real Simple and so the now, the house comes with a fridge, washer/dryer, bar-b-que, juice, and various other necessities.
On this particular day, all of my spare energy was used up, and this was all I could manage.