Anthropologie (they have clothing and furniture):
http://www.anthropologie.com/anthro/inde…
Alloy:
http://store.alloy.com/frontpage.do
Express:
http://www.express.com/
American Eagle:
http://www.ae.com/
Forever 21:
http://www.forever21.com/
ASOS:
http://www.asos.com/
Aldo (mostly for shoes and accessories):
http://www.aldoshoes.com/
Top Shop:
http://www.topshop.com/webapp/wcs/stores…
Department stores like Macy*s, Dillard's, Younkers, Von Maur, and Bloomingdale's are also great places for clothing and other stuff. More stores include H&M, dELiA*s, Victoria's Secret (PINK), Urban Outfitters, Wet Seal, and DEB.
Fred Flare is a great place for clothing but they've also got a ton of fun and unique things that would be great for Christmas gifts!:
http://www.fredflare.com/customer/home_m…
For furniture specifically, try places like IKEA or Pottery Barn Teen:
http://www.pbteen.com/
I hope I helped! :)
Anthropologie, Alloy, Express, American Eagle, Forever 21, ASOS, Aldo, Top Shop, Fred Flare, and Pottery Barn Teen