There are two Archivers' stores - one in the northeast part of the city and one in the south part of the city. There used to be an independent scrapping store in one of the south suburbs (Greenwood), but it's closed now and I don't know if there are others. There's a Cord Camera store near 86th and Westfield (north end of the city) that has scrapping stuff in one half of the store.
The suburbs have the usual chains - Michael's, Joann, Hobby Lobby. If you don't have a Tuesday Morning store, there's one in the south suburb Greenwood on State Road 135 just south of County Line - it's kind of a Big Lots/TJ Maxx-type of discount store, and that particular location has an entire half-aisle of crafty stuff, often with some really good scrap stuff.