In February I biked in 11.5 of the 19 days I worked, for a rate of 61%. Again that’s a lot better than last February’s rate of 0%. I only drove myself in once, so we were pretty good on the car usage as well.
For March I’m planning to work about 20 days and I plan to bike at least 12 of those days.
Edit – we’ve been using a GPS tracker for since about March 2014 to get an auto insurance discount. As a bonus it is a great way to also track our monthly mileage very closely – I’m going back for the months to document our total driving mileage. In February we drove only about 800 total miles.