My commute is 13.5 - 14 miles each way. It takes me 55 minutes, no matter how fast I ride, because there are enough traffic lights that I just cannot avoid. I also go in early and go home late to avoid the worst of the traffic, so I only do it between 1 and 3 times a week (it makes for a LONG work day). It's really hard to be motivated to ride when I'm super busy because I can drive the same distance in less than 20 minutes (highway).

I wear bike clothes because it's too hot not to. In the winter, I wear bike clothes because it's too cold not to! I guess in the fall, I could get away with wearing non-biking clothes, but my bike clothes are more comfy than my regular clothes, so it'll probably never happen. Plus, I've spent more money on my bike wardrobe over the past 2 years than I have on my regular clothes, so I look better when I bike anyway!