Great prices for office supplies and furniture right in central downtown, 4th & Pike. I've purchased chairs that I use in my apartment. The shipping has been free (for orders over $50). They have also have a rebate program.
Large selection of everything from computers to furniture...not always easy to find assistance but when you do, the staff are generally quite helpful.
There are weekly fliers with a wide array of prices slashed.
One caveat: it is NOT easy to return furniture, despite what the sales people may say, as you have to dis-assemble the furniture, which is nigh impossible.