No table set-up is complete without salt and pepper shakers. For restaurants, glass "diner-style" shakers are the most popular. They're also easy to clean, since they can be put in the diswasher.
But since there are so many varieties available (there's even a hot collector's community), take some time to select sets that reflect the decor of your restaurant. When you choose, be sure to note their quality. Ceramic shakers should be fire-glazed to ensure color does not rub off on patron's fingers.
Keep salt from caking in the shaker by adding a bit of rice before you fill the shaker. Shake to mix. When possible, offer freshly ground pepper; it's an easy way to add a bit of class to your dining establishment!