I have a 30 mile round trip I started 5 weeks ago and I think it was this last week where I finally started to feel like the trip wasn't a big deal. I have started to take the ride home a little easier than the ride in so I don't blow my legs out. Not a lot easier, but maybe 10 -15 minutes more to get home. It seems to help recovery for the next day.

Good luck! In the 5 weeks I've been at it my leg muscles have hardened and I have dropped 10 pounds. My cardio is a lot better too. It's been a good experience.