When it was time to return to the office after being out on extended medical leave, I decided that I would not be taking BART ever again and instead started taking Lyft Line, and although it is cheaper than a regular Lyft it's still pretty pricey - anywhere from $16-$30 one way depending on the time of day and whatever random whims influence "peak hour pricing." Hoping to find something a little cheaper, I turned to the Google and began to search carpooling options.