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Doctor Popular had this clever solution for simplifying mass transit with his bicycle:

When taking your bike on to the CalTrain, you always wanna make sure you aren’t blocking someone else’s bike that might be getting off before yours. Most bikes show their destinations by using these ugly little yellow tags that would show what stations they would board or depart on. After talking about it for a while, I finally decided to make my own bike cozy that proudly displayed my frequent start/stop destinations, San Francisco and San Mateo.