One of the few good boutiques in Sarnia is Modern Philosophy on Christina Street. I was in this week to pick up a silk, military green dress by Dept. The collections are thoughtful and well selected. As the owner is an interior designer by training, the boutique is relaxing to browse through. As is the case with most gems in Sarnia is that the store is a little hidden and could be easily missed. While it is downtown, it is just pass City Hall in a dark-brick, squat building that doesn't have great window display.