2) Bad MacGyvering: the people who owned the house before my roommate decided to run a copper water pipe from the gas line to a gas-powered clothes dryer. The other day we smelled gas and called the maintenance guy, who had a fit when he saw the pipe. Turns out gas has a tendency to corrode copper pipes. Now we have to replace it with a steel pipe before we can do any more laundry.
3) Silly MacGyvering (my most frequent kind): I have a queen-size bed, and a tendency to tangle the blankets like crazy in my sleep. So, after making the bed, I pin one side down with heavy boxes (along the length of the bed). Rather than pulling the blankets down to get into bed, I open them along the long side. And they no longer are tangled when I wake up (also, the box nearest my head serves as a nightstand). In addition, my mattress is raised 3 feet off the floor on a platform built of 2X4, so I can store stuff under it. My desk has been similarly lofted so that I can sit on the foot of my bed and work at the desk comfortably. I plan to build pull-out drawers under both (any suggestions for doing this on the cheap?). All in all, it makes my tiny room seem about twice the size.