Pros:
We have a six-month waiting list for the parking deck here - I jumped it by taking the bike instead and parking it on the rack inside the deck.
Riding clears my head at the end of the day
Saving tons of money that I can spend on things like our impending baby
Local university campus is on my ride home, and has nice "scenery"

Cons:
I sweat a LOT. That in itself isn't a bad thing, but having to change into work clothes afterwards is.
The roads are in horrible condition around here, and that hurts the boys
Need a more effective laptop-carrying solution.