Ebad, a gentleman from the midwest, sent this to me...

I came across this exercise suggested for seniors to build muscle strength in the arms and shoulders. It seems so easy. So I thought I'd pass it on.

The article suggested doing it three days a week. Begin by standing on a 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, 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 a 10-lb potato sack. Then a 50 lb. potato sack, 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.

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