Anyone made a commitment to live car free?

I’m changing jobs again soon, and I’ll be working 10 miles from home. I’ve biked the distance many times in the past, and can commute to work in 40-45 minutes. However, I’ve never biked to work every day of the week, all year round. Winter here will be challenging, but I’ve ridden in the winter before. I’m thinking of making a commitment to myself to try biking 100% of the time to work to start my car-free living.

Have you ever made a commitment to yourself (or someone else) which caused you to become car free? If so, did you make it? If not, what caused you to fail?