The best way to learn how to squat correctly is to do squats facing a wall. Bring your toes to the wall, almost touching, then sit down. Stay looking straight so you learn to keep your torso up. Sit as low as you can go then hold the seated position for 5-10 seconds and repeat. Great for butt, legs, and core.
Do this routine before every shower: 50 jumping jacks, 5 pushups, 20 crunches, 20 mountain climbers, and 30 second plank. I like the idea of doing it before every shower, then it is easier to become part of a routine