Let's try another type of workout challenge this week. It's good to mix it up now and then so that you challenge your muscles. Stellibell's squat challenge:
Sit down into a deep squat, making sure your knees don't go over your toes.
Monday: 20 squats Tuesday: 30 squats Wednesday: 40 squats Thursday: 50 squats Friday: 60 squats Saturday: 70 squats Sunday: 80 squats