Ride mostly. The only times I don't are during expected thunderstorms (lightning and motorcycles do not mix!) and when I need to pick up stuff during or after work that won't fit on the bike.
For me it's a no brainer. To park a car anywhere near where I work is over $400 per month, a spot in the parking garage attached to my building, with security, only costs $75 per month. Cheaper than a bus pass. I've ridden everyday since the snow melted mid March, only been caught in the rain maybe a half dozen times. Actually rode thought a freak blizzard one day, but the ground was warm enough the snow melted on contact. I didn't like that much.
Ride to work. Work to ride. Yep every day rain is not eminent. It really sets the tone for the day. I think it sharpens my wits and I know it makes me better lookin'.
You said it.
There's nothing like hairdo by helmet