Gyms, like jurors' chambers and the Illuminati, are members'-only enterprises organized in a hierarchy based upon who can arm curl the most. Sweat your way to supremacy with today's Groupon: for $20, you get a one-month membership (a $60 value) at Body Boutique in Lawrence.

Featuring Les Mills group workout classes, Body Boutique has been facilitating fitness training for women of all ages and fitness levels for more than 20 years. Body Boutique's memberships include admission to group exercise classes, yoga and Pilates classes, and use of the spa, including the jacuzzi, dry sauna, and koala-free eucalyptus steam room. Members can train misbehaving hearts on state-of-the-art cardio equipment and free weights or, for an additional charge, partake in on-site nutrition workshops and personal-training sessions. Body Boutique is open seven days a week to accommodate customer needs.

Reviews

Five Insider Pagers give Body Boutique an average of three stars, and three Citysearchers give it an average of 3.5 stars:

• My hats off to the program and the people that make it work. For me this has been a positive experience. – Cindy B., Insider Pages
• Great gym, great trainers, friendly staff. – melmmo, Citysearch