Begin by standing on a flat comfortable surface, where you have plenty of room at each side.

With a 5 lb. potato sack in each hand, extend your arms straight out from your sides and hold them there as long as you can … Try to reach a full minute, and then relax. Each day you’ll find that you can hold this position for just a bit longer.

After a couple of weeks, move up to 10 lb. potato sacks. Then try 50 lb. potato sacks – and then eventually try to get to where you can lift a 100 lb. potato sack in each hand and hold your arms straight for more than a full minute. (I’m at this level.)

After you feel confident at that level, put a potato in each of the sacks.