On my normal 8 mile ride to work I go down a really big hill. I reach speeds of 35-40 going down it. I avoid going up the hill because I think I cant do it but I frequently see serious roadies going up it - though slowly. My rides to and from work are on Map My Ride for 43360 if you want to see the elevation.
Thursday when I left work for whatever reason I thought I would try goin up 'the hill'. Well a long story short, I made it. I am no longer afraid of hills. In fact on my Saturday morning ride I reversed my route for that ride so that I had to go up an even bigger hill and I also made that one. I saved almost a mile from my trip home going up the hill.
I have been commuting for two months now and I feel like I have had a heart and lung transplant from Superman. I dont know how far into cold weather I will be motivated to ride when fall/winter rolls around but for now I am absolutely loving the ride. I was telling a coworker this and he questioned which trip home had the biggest health benefit. 9 miles gaining in elevation over most of the trip or 8 miles climbing a large hill - I dont know the answer but I enjoy either way home. Both take 34 min on avg. and my trip to work takes 27.