I Ride My New Bike 5.6 Miles to Work
Not every day, but at least a couple of times a week. Coming back has more uphill parts, so its harder. But I travel over 11 miles a day by bike when I bike to work. I figured it out using this website.
Remarkably, and surprisingly to me, when I go running to and through Golden Gate Park and back, I run over 5.8 miles. That's still not even 1/5 of a marathon though.