2015 was the first year I've tracked my transit usage all year long (thanks to my ORCA card). I took 254 transit trips in 2015, spending $654 on fares.
My most common route was Sound Transit's 554, which I rode 98 times in the first half of the year getting to and from Bellevue College for the programming courses I was taking. Number two was Metro's 8, connecting my house and my new job. I rode that 82 times in the latter half of the year. In third place was the 48 with 40 trips. Surprisingly I only had two trips on Link all year, to and from the airport for my trip to Chicago.