  So I was peeing in the urinal yesterday when it hit me. I prefer street shopping in the winter. Why you ask? Well here's my reason. In the winter when you street shop the natural light is dim, making for highly reflective glare free store windows.
And we all know about the expansive and contractatory (I made up that word right? ) properties of glass. So when the inside tempurature is warmer than the outside temperature it makes the inner plane of the window slightly larger than the outer plane, thus creating a slightly concave surface. This makes you look thin and beautiful. Generally panes of glass are taller than they are wide, if you are walking past a store where the pane is wider than it is tall, look away, it will only make you look short. Conversely in the summer you look fat. This is a variation on the hall of mirrors attraction at amusement parks.
Be forwarned that this is not always the case as some new windows are installed more snug than others to allow for settling and foundation frost heaving. I know what you're thinking, "Damn that was a long pee. " Well your right, I think I drink too much coffee in the morning. So then I shook it twice ('cause any more and I'd be playing with it), and went back to my desk. 
