I'm still trying to work up to 5 days a week commuting (18 miles each way on gravel with lots of hills on a mountain bike). So far, I've done 3 days in a week with two of them consecutive. The ride is getting easier, but having a rest between rides is still needed.

Yesterday was my first commute where I knew I was going to be rained on, so I guess I'm "officially" no longer a fair weather commuter.