The post office is a 1.5 mile round trip by car. I decided to take the bike instead because it's a pretty day. When I got back thirty minutes later, my bike computer told me I'd gone 8.0 miles.
How can this be?
All I did was take a letter to the post office, oh, and take a short spin through the park, and over that cool bridge, and down that fun little bike trail on the edge of the canyon, and back through the park to the fountain, and up and over that freeway on the footbridge, and back home.
So now a trip to the post office is going to be 8 miles? Geesh!
PS: I also learned how a simple shoestring can YANK one back to reality in the midst of a good cycling daydream when it (the shoestring) gets caught wound around the crank and in the chain. Yowsa!