Exercise can be expensive, but it doesn't have to be. Team sports such as football, rugby or cricket can be cheap because all the players share the cost of the pitch. Joining a sports club is usually a cheap way of getting exercise and can be very sociable, too. Local leisure centres usually offer squash at cheap rates if you book a court at offpeak times, and you may be able to get cheap gym membership too. If the leisure centre has a pool, swimming is also a great way to exercise.