28km each way!
I admit to not being as zealous as I used to be. The biggest problem is Time - commuting well over an hour each way ie getting towards 3h each day if showers each side are included rather uses up one's spare time. So these days I will use multi-mode with train in the morning, total time 1h and no shower needed, and in the afternoon still do the 28km unless it's raining, in which case I train multi-mode as well. The 28km is the bike path way, if I want to be home a bit faster I use the direct roads instead which is about 26km.
So my weekly average is far less, 30min in the mornings, 70min in the afternoon, if the weather is dry. I'd call about 180km a week as opposed to the 280-ish I used to do.
Car is out. I have developed a total aversion to driving.