Can You Bargain on Furniture?

In spite of my frugal ways, I am not good at bargaining. I guess I have a fear of rejection! I've heard here and there that it is possible to bargain in furniture stores. As an early-bird planner, I am already thinking about the couch I will buy in a year or two. So far, I like one at Crate and Barrel. When we were in Boston, we walked right by a CandB. We went in and tried the sofa. We liked it. The nice sales guy (Kenny) said that, instead of buying on-line, I should give him a call. The shipping is shockingly expensive, so I'm hoping for a deal of some sort. So the question is: can you bargain at a store like Crate and Barrel? Yay or Nay?