Heard this and had to pass it on in a poetic form

Arm Exercise

If you’re tired of all those exercises that always seem defective,
And your efforts every time is never quite effective,

Here’s an exercise for seniors or people just like you,
It costs so very little, but it’s proven to be true ,

Select an area where you can have free room to stand ,
Extend your arms with a five pound potato bag in each hand,

Hold this pose for one full minute, repeating often every day,
After a week , you’re doing great, Time to up the size I’d say,

A ten pound potato bag , a little harder but doing fine
I couldn’t believe it; getting easier every time,

Next came the twenty pounder and then the fifty,
Boy this potato bag routine is really something nifty,

I can’t believe it, here I’ve made it, all the way up to the end,
A hundred pound potato bag, the pinnacle of success my friend,

There’s just no telling I’m feeling confident, there’s no limit,
Your only reward is what you put in it ,

My muscles will no longer sag,
Tomorrow I’m putting one potato in each bag!