As you all know, I take public transportation to work everyday. It takes me 45-60 mins door-to-door depending on the shuttle and transfers and costs me about $8.90/day.  Apparently we’ve reached an exceedance in emissions this week so they announced a Spare the Air Day yesterday. That means I get free rides on Muni (all day) and BART (until 1pm). Awesome. I’m saving about 6 bucks a day! It started yesterday and keeps going until emissions are down. However, I think we only get 4 free days per year. Oh well, I will take whatever I can get.