I like riding a bicycle. While I’d like to ride 20 hours/week, I’m probably closer to 12-15 hours/week.
A couple of things. First I find on those 1-4 hour rides, I can clear my head and actually be more creative by not thinking. You know, the whole zen thing. Also on those rides I organize my time, believe it or not. I can prioritize, schedule and think of alternative plans in my head while riding because of the zen state, nothing else gets in. If you efficiently plan, your time is optimized.
I also hate to drive and riding is an excellent alternative to driving. I ride to work, to the store, just about everywhere. I’ll even ride to our friend’s lake house early in the morning while the family sleeps in, drives and gets there at the same time. Win/win for everyone.