Walking is a wonderful way to sort out ideas. I have solved many more problems while walking than I have sitting at my desk. In fact, most of the tricky bits in my PhD were nutted out that way. The walking phase is now embedded into my intellectual process and, although I may appear to be mad, I find talking out loud while I walk is the most effective way. Today’s walk attracted a few bewildered looks from strangers in the street, as I talked and gesticulated, but was fabulously productive in figuring out this weekend’s research idea.