Some of the most successful gyms take advantage of promoting “Summer Body” specials. And when do they do it? After the traditional holiday season, of course! That’s when people are most dissatisfied with their bodies and create New Year resolutions to get in shape. Promote a challenge on Facebook to get people motivated to join your gym and stick to their goals, from now into the summer months. Offer a cash prize or free membership at the end to the person who lost the highest percentage of weight.