Lie on your back or sit up in bed, legs long.
Avoid: Pointing so hard the foot cramps.
Easier: One foot at a time.
Avoid: Letting the knees flop down at the end.
Easier: Rock only a hand's width each way.
Avoid: Pulling on the knees: hold behind the thighs.
Easier: One knee at a time.
Avoid: Arching the low back off the bed.
Easier: Arms by your sides, reach with the heels.
Avoid: Sitting straight up from flat on your back.
Avoid: Jack-knifing straight up from your back.
Avoid: Standing up fast: the head can swim.