Before deciding on getting the full membership at the gym, try it out for free.
Visit Fitness First, LA Fitness, Virgin Active and get one day or even one week free passes. Enjoy it for free for some time, check how it works for you and decide on whether you want to roll out for the whole year…otherwise just get fitter in a cheaper way by buying Home gym equipment at Argos.co.uk – Your Online Shop for Sports and leisure. They have pretty good and very affortable prices!