There are many ways to stay in shape and have a great time doing it as well. During those steamy hot summer days and nights, try roller skating. This activity alone burns 8,000 calories in 20 minutes. With great music it does not even feel like real exercise. Next, try walking around Malls. Not only will you spend money, you’re getting a work out doing it too. These are just a couple of Tips to get great exercise without gym memberships that may not be used.