I like to wear street clothes and even have a different helmet for my commutes, a cool black Giro Torero that I love. Since I work at a tech company, dress is informal, so I wear jeans or dockers, with Adiamo cycling liners underneath to keep the seams from giving me sores. That's a must. Then I wear regular shirts or blouses, with a yellow rain jacket usually and some old Nashbar gloves, just in case I have to hit the pavement someday.