1. Begin by standing on a comfortable surface, where you have plenty of
room at each side. With a 2kg 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.
2. Each day, you'll find that you can hold this position for just a bit
longer. After a couple of weeks, move up to 5kg potato sacks. Then 25kg
potato sacks and then eventually try to get to where you can lift a 50kg
potato sack in each hand and hold your arms straight for more than a
full minute (I'm at this level).
3. After you feel confident at that level, put a potato in each of the sacks......
