I walk every chance I get, I try to take stairs instead of an elevator or escalator. I just started rock climbing and have been going three times a week to work my upper body.
My favourite exercise is doing circus aerials, like trapeze and aerial silks. I loved it so much, I worked really hard and joined a circus! But beginner classes are fun and challenging and FANTASTIC exercise.
I also stretch every day, some positions I learned from ballet, some from yoga and some from circus acrobatics.