I started commuting in mid-Feb. I've put over 2,000mi on my bike. I live 11mi from where I work.

According to the spreadsheet I keep I've spent 10x more on bike stuff (all inclusive, bike, gear, lights, clothes, parts, maintenance, repairs, etc.) than I have saved so far and I save an average of $6.50 a day (computed generously including the wear & tear calculations for the US tax deduction).

And I still pay the same car payment (I'm not car-free) as well as the same car insurance.

At this rate I'll never save money by biking to work.

That said, will I go back to driving a car? Hell no.