What are the best techniques for using a 12 inch post hole digger effectively and efficiently?

To use a 12-inch post hole digger effectively and efficiently, start by marking the spot where you want to dig the hole. Position the digger vertically and push the blades into the ground using your foot. Use your arms to lift and twist the digger to loosen the soil, then pull it out and remove the dirt. Repeat this process until you reach the desired depth. Make sure to take breaks as needed and stay hydrated to prevent fatigue.