Balance on one foot with your other foot pressed against your leg.
Keep your core braced as you bring a dumbbell overhead into a circle. Repeat in the opposite direction.
With one foot on a balance board, lower down into a lunge and back up again.
Reach your arm and opposite leg out, then return to tabletop position. Repeat on the other side.
Hold a weight overhead while you step up onto a box or stool. Keep your core braced the entire time!