I just wondered if anyone else has a commute that tires them out? I'm on an entry level road bike and its 6 miles each way. The way back is virtually all uphill and I've been doing this for nearly a year. Takes me about 30 minutes in and just under 40 home but at the end of the day all I can face is the sofa. I also walk for 30 mins in the am and 45 mins in the pm but I'm just wondering if others find their commute so physically draining?