Clubs and Societies at Strathclyde Watch
Clubs set their own membership fees, subject to a minimum of £1 per year. Obviously some clubs would charge a bit more, it just depends on what the money is needed for.
Generally most "interest based" clubs and societies will be under £5 per year. If you're interested in clubs and societies, you can pop up to level 7 of the students association and talk to someone in the clubs and societies hub.
Sports clubs are generally a few pounds per week as they have more equipment and space needs. It's definitely worth getting involved in any clubs you're interested in - just turn up and see if you like it. There's plenty more information about the available clubs in the freshers fair, and the information you should have received yesterday from the students association