Yeah that cassette is hilarious. The smallest 4 or so of my (9) cogs looked like that this morning.

Not really commute related but I'll be commuting on them: I just ordered 2 Schwalbe Ice Spikers from the LBS. I've grown tired of the Nokian W-106 performance on the unplowed bike path. Not bashing them, they're fine tires, but they're out of their element in off-road situations.

They may arrive Friday, which means New England can look forward to a warm weekend with temperatures in the 60s, and rain, so I can't test them out.