I solved my exercise vs. errands dilemma again by running the errands by bike. This time, I tackled some gratuitous hills for added challenge.
granny gear"! (That link is pretty sexist and ageist, but explains why mountain bikers call it the granny gear. Read this transmission mechanics link for how it works.)
I climbed the uphill without stopping--well, one red traffic light. On the way down, I stopped to take pictures.
Read the real reason I stopped to take this picture.