It was quite a long time ago but I recalled recenty that in my youth I was walking only to school (5minutes) and to church by foot. I spent almost every second on bike (except when playing footbal, but not necessary).
By public transportation it took me 45 minutes to go to work I thought I could totally make this nearly 9km in the same time on bike, and after some time event beat it. So recently I dusted out my old bike and it actually took me half an hour to get to the office.
Other advantage is arriving home with totally clear head. It maybe less comfortable when the Summer arrives and we have 30 deg. but I’ll figure it out.
On the disadvantages – I would read less books now… maybe I should switch to audio-books?