Learning how to use a Holga, plus I always found Banner Mattress very suspicious, as I do all mattress stores. How do they stay in business with three other mattress stores making profits (supposedly) within a 10 mile radius? How many sales do they make a day, and how many people really need more than one mattress to sleep on every ten years? They could sell only so many mattresses. How do they stay in business then? I think the mattress store is just a front for an entire drug trade going on.