Common Sort also has a location in the east end of town, which I haven't visited but had heard lots about. The Parkdale location is large and excellently laid out--clothes are sorted by size and accessories are beautifully displayed on the walls. Prices seem reasonable, given the quality of the selection; most of the dresses I looked at were in the $20-$30 range.
The shop also takes things on consignment, and it sounds like they're choosy about what they take (as evidenced by the clothes on the floor!) When I was in, I overheard the girls at the counter discussing how to detect counterfeit jeans--it's nice to know that all the clothes for sale have been vetted!