It doesn't matter if you are a portrait photographer, a still life photographer or a commercial product photographer, props are an essential part of your world. For the most part props are purchased on an "as needed" basis. Other times it's when opportunity presents itself. I have come to a point in my career that I subconsciously keep an eye out for items that may be useful as a prop. The funny thing is I never know when or where I'll find them, or what, for that matter. Recently I was at the supermarket and I happened to walk past a shelf loaded up with those classic mass produced Coca-Cola glasses. As they were on sale and I could always use glasses like these I decided to pick up a set of four... and here is where the sickness starts.