From what I gathered on web md-
avoid alcohol, caffeine, and nicotine. Make sure you are getting adequate nutrition, sometimes a vitamin or mineral deficiency can cause RLS. "You may also benefit from physical therapy and self-care treatments, such as stretching, taking hot or cold baths, whirlpool baths, applying hot or cold packs to the affected area, limb massage, or vibratory or electrical stimulation of the feet and toes before bedtime. Exercise and relaxation techniques also may be helpful."