Wait until the piece you want to buy goes on sale. Typically, both July and January are great months for furniture sales. Once you know what you would like, simply keep your eye on it. You never knew when the price may be slashed or the company selling it decides to run a great deal.
Do not hesitate to haggle with the salesperson. Furniture is much like cars in the sense that they are drastically marked up. You will be able to get a lower price on the furniture if you just speak up. Do not let them tell you that they cannot give it to you at a lesser price because they can take as much as twenty percent off of retail cost.