If you're looking for a new way to race across the office, then you might be interested in carpet skates. Allegedly, they're even faster than email.
While the idea looks innovative, I found lots of carpet skating videos on YouTube. So apparently underground carpet skating leagues have already started, and you've been missing out! You'll be happy to see that in this video, someone actually breaks their arm - so you know it's a good sport.
You could probably make your own carpet skates, but these carpet skates only cost $16 and they look really fast.