STYLETHREAD -- LET'S TALK SHOP!

I just moved from Los Angeles to mid-Missouri (my fifth move in four years, but that's another story). My coworker and I are planning a shopping adventure in St. Louis this weekend and we were wondering is anyone could recommend some places to visit. We have already been to the St. Louis Galleria and the West County shopping center. Where else would we find a cute shopping district? TIA!