The Sports Club/LA: Waives the initiation fee for the rest of December, and offers all of January free, throwing in one complimentary private training session. Offer expires Dec. 31. Has 11 locations throughout California, New York, Washington D.C., Boston, Miami and Dallas.
Gold's Gym: Lowers enrollment fee to $1 (it normally ranges between $99 and $199), and holds "Try It Before You Buy It" day Jan. 1, when prospective members can work out, take classes and try any of Gold's Gyms, which are located throughout the country, for free.
Crunch: Offers website deals that expire Dec. 31, 2010. For the month of January, Crunch offers 50 percent off enrollment (typically $84-$99 a month) with no monthly payment for the first month, plus $10 off monthly dues on citywide memberships (which includes all locations in one particular city) through Jan. 10. Crunch has 25 locations in New York, Miami, Los Angeles, Portland, Ore., Orange County, Calif., and the San Francisco Bay Area.
New York Sports Clubs (also in Boston, Philadelphia and Washington D.C.): Sign up for 2011 and get January free.