Chest Dip

Ideally, you want to find some parallel bars in a playground but, failing that, you can use the backs of 2 very sturdy chairs or the corner of a kitchen counter. Centre yourself between the surfaces you are using and lift yourself off the ground. Keeping the forearms vertical and your elbows close to your body, bend at the elbows until your arms are bent 90 degrees. Push back up to the starting position.