Our venue did not have any white or ivory tablecloths or cloth napkins. In addition, its chairs were a bit battered and nonmatching (some banquet chairs, some folding chairs), so we wanted chair covers to spruce them up and make them look more matching. When we looked into renting linens, we discovered it was actually less expensive to buy them than to rent. We needed several different sizes of linens (round tablecloths for guest tables, rectangular ones for the cake table and buffet tables, chair covers for both banquet and folding chairs, and satin sashes for the chair), and no one place sold all of the sizes we needed, so we ordered from several different places.
We bought ivory 120" round tablecloths and 20" square cloth napkins from Wholesale Wedding Chair Covers, 54"x96" rectangular tablecloths from eFavormart, and 90" x 132" rectangular tablecloths, more 20" square cloth napkins, cloth napkin holders, and chair covers (both banquet and folding) from LinenTableCloth.com. We compared prices from these companies at eBay and on their own sites, because sometimes linens were more expensive at one place than another. In addition, it was often worthwhile Googling discount coupons for these places, as such coupons were frequently available.
We discovered that "ivory" at one company was not exactly the same as "ivory" at a different company. For example, the napkins from LinenTableCloth.com were almost white, while those from from Wholesale Wedding Chair Covers were closer to champagne. This was not a big deal for us, inasmuch as we had relatively dim lighting at our reception. However, it would be worth keeping in mind for a daytime reception.
We also bought gold satin sashes from Elegant Perspectives. We used these as chair decorations for both the ceremony and the reception. We also used four of them on the edges of the top of our chuppah (wedding canopy), and four more to gather up the fabric on the legs of the chuppah. Since the chuppah was used not only at our ceremony, but also to frame the cake table at our reception, the sashes helped to tie together the various decor elements.
We were able to sell all of our linens (other than a few we kept for our own dining room table) after the wedding, so the net cost was quite reasonable.