An Anonymous Rich Person Is Hiding Money All Around San Francisco

If you live in San Francisco, be on the lookout for some mysterious white envelopes -- they may contain $100 bills. An anonymous person is going around the city, dropping off sums of money in a project called "Hidden Cash," and tweeting hints about the locations. Could you and 25 of your friends use a @Sightglass Coffee? Look in the abandoned phonebox next door. pic.twitter.com/tzh9Ffk6dt -- Hidden Cash (@HiddenCash) May 23, 2014 Why not use this to tip your @YogaToThePeople teacher this morning...