King Exchange is a used clothing store, with multiple locations in Toronto (the one I have gone into is on Queen West).
They have a variety of shoes, tops, dresses, pants, skirts etc. all with VERY reasonable prices. They have many vintage pieces, as well as everyday used clothing. They look at everything before they accept it into the store, so everything I looked at seemed in good condition. They aim to get in seasonal & trendy clothing as well to satisfy their customers. Popular season items (eg. denim cut off shorts for summer) go quickly! they are constantly getting new merchandise so it is always fun to look around in.
I'm not the greatest with envisioning vintage pieces in my wardrobe, so I didn't have much luck finding anything for myself, but I have friends who have found plenty.
What I especially love about this store is that you can bring in a bag of clothes, and they will take a look at what they want and give you cash (or store credit) for it (note they don't accept business attire or formal dresses).
This place is definitely worth a look when you're in the area, and for people who love finding fun, or unique pieces (or trendy pieces for a great deal) take a look!!