I can't add much to the how-to, it's been covered pretty well.

However, both DH & I have noticed that once we get to work on bikes, we are happier and work smarter, and are all-'round better people. The person who shares the small office with me has noticed, too.

Do it for your co-workers.

Also, keep an eye out on the bike for alternate routes that you just don't/can't see when in a car. Watch for things like bike tracks through grass into a parking lot, underpasses, and stuff like that. Some are kinda-sorta semi-legal, but they work. DH cuts through an apartment complex, I (and other bike commuters) cross the busiest street in town at an intersection that you just can't get across in a car. It works for a bike, though. A person just doesn't SEE these things through glass.

Getting to work on a bike is a tremendously liberating experience. Go for it. It will become the best part of your day. Really.