1) Try http://www.costco.com, which has way more furniture options than you see in the warehouses. I haven’t personally bought furniture from them but I assume it’s decent quality and they seem to have quite a few things that are sold in sets.
2) Try Home Goods, which is owned by the same company that owns Marshall’s and TJ Maxx and has some decent furniture – not a lot of sofas but good selection of chairs, rugs, end/coffee tables, etc.
