Like everything else in life, bike commuting involves risks. You just don’t know what’s around the corner. It could be a runaway garbage truck, a dog off its leash, a cop with a ticket book, or any number of other dangers. One risk does not present itself until after you arrive at work: the sartorial shortage.
Over the years I have forgotten my underwear, my shirt, my belt and my socks. Today I forgot my socks. Since my biking socks were mostly black and I didn’t have any meetings to look presentable for I just used them. I didn’t have to because I have a sartorial back up plan.
I have stashed a change of clothing in my office. Since I am only going to wear this stuff once or twice a year they are not my finest threads but they’ll do in a pinch. So think ahead. You don’t want to go to that big meeting with your client. She might frown upon your lycra business shorts.
A Few Spokes Shy of a Wheel 
You are wise, I don’t know why I haven’t stored clothes at work before. I have thought about it but never actually followed through. I really should or some day I am bound to make a fool of myself!
Yup. I always have extras of everything stashed in my desk drawer!