The supermarket is maybe... 10 or 12 long city blocks away. But it's also over a highway, up and down a few minor inclines, and without any decent sidewalk for a large part of it. Plus most of the time I was carrying my 18 month old, who is both large for his age and a bit chubby.
My arm is aching, and it took about an hour and a half in total. But it was a nice little (hah) walk and now I've got what I needed. And my arms are tired. Baby's eating his hard-earned* banana now. But I got the maple syrup I promised my other son, and we got some fresh air. Bleh. Hehe.
* - it was me doing the earning, though :P