Follow it up with a membership to the Bike Kitchen (www.bikekitchen.org), a DIY shop with tools, parts, and people on hand to help you tune your spokes. It also regularly hosts "WTF" nights for girls, queers, and transpeople.
10. Need to know how to find the bike lanes and avoid the hills? Get one of those great bike maps (available at City Hall and at bike shops) when you join the SF Bike Coalition through a free download at www.sfbike.org/download/map.pdf. You can also pick them up at the energizer stations all over town on Bike to Work Day. It will help you find the best routes and navigate groovy spots like the Wiggle, which is the best route from mid-Market Street to Golden Gate Park. If you look along the sides of the streets, you'll even see the green bike route signs that say "Wiggle." If you get lost, just look for a bike lane, which are well-marked all over town. Or follow all the other bikers.