Part-time stringers sometimes have to rely on retailers to purchase strings. I would ask each about wholesale pricing and discounts for part-time stringers. Here is the top 7 that I know of in the USA. Let me know if you have other favorites in the US. I also know that Solinco, Alpha, Unique and Gamma also cater to stringers and offer discounts to stringers. If you are a member of the USRSA that also can get you some discounts. - Tennis Warehouse – A premier online tennis retailer known for its massive selection of strings, ranging from natural gut to polyester, from all the top brands. Tennis Warehouse offers free 2-day shipping on orders over $50 in the contiguous U.S.​ - Tennis Express – Another top online store with a huge assortment of tennis strings (Babolat, Wilson, Luxilon, Yonex, and more) for every style of play. Tennis Express provides free shipping on orders over $50​ - Midwest Sports (Tennis-Point USA) – A long-standing tennis retailer (recently rebranded under the Tennis-Point umbrella) with a wide variety of strings for power, control, and durability from top brands like Babolat, Wilson, and Yonex​ - Holabird Sports – A family-owned sporting goods store (founded in 1981) that has a strong tennis focus. Holabird carries an extensive selection of strings (over 350 string products listed) from the biggest brands in tennis​ - Tennis Plaza – A full-service tennis specialty retailer based in Florida (serving players since 1990). Tennis Plaza offers a world-class selection of strings and equipment and provides value-added services both online and in-store. Notably, they offer same-day racquet stringing, custom racquet tuning, and a demo program for trying out gear​ - Do It Tennis – A smaller, family-owned tennis shop (est. 1990) that has grown into a reputable online store. Do It Tennis carries a wide array of strings and gear – racquets, strings, grips, bags and more – from popular brands like Babolat and Gamma​ - Fromuth Tennis – Fromuth is a go-to retailer especially famed for its huge selection of tennis strings. Originally a distributor for pro shops and stringers, Fromuth now sells directly to the public, offering strings not just for tennis but also for racquetball, squash, etc.​