While I wouldn't recommend it, I switched to the Dvorak keyboard layout. It forced me type with good habits, such as not looking at the keyboard and keeping my fingers on home row. I went from 48 wpm to 90-100 wpm.
That being said, I wouldn't recommend actually switching. It makes me incompatible with the rest of the world.
That being said, I wouldn't recommend actually switching. It makes me incompatible with the rest of the world.