No regular commute these days, alas; back in Cambridge I was doing 10-12km a day into work and back, plus whatever trips from work into town for errands etc. Occasionally I'd take the tourer into work rather than the Dutch bike and would do a long loop (30-40km) home.
When we moved, my switch to freelance WFH meant I didn't have a regular commute any more, but what with playgroups, nursery drop-offs, and general errands, I was doing between 100 and 150km a week on a bakfiets, which was good training...
These days I do maybe 20km a week utility cycling, but the vast majority of my distance is leisure riding. I'm hoping that if and when I get another FT job it will be (possibly train-assisted) cyclo-commute-friendly. Depending on location that might be an excuse to build a towpath-oriented utility bike (old rigid MTB with rack and guards?), as I don't really fancy dealing with the moton-infested main roads of the West Mids, especially in rush hour.