A poem in your back pocket

It's like having a $20 bill stashed in your shoe for emergencies.
Myself, I've got "Casey at the Bat," "Gunga Din," "Mending Wall," "If," and "The Childrens' Hour" in my memory repertoire.
Jim Holt in a NY Times essay made a good and fun case for memorizing poetry. He ended with these three myths:

Myth No. 1: Poetry is painful to memorize. It is not at all painful. Just do a line or two a day.

Myth No. 2: There isn’t enough room in your memory to store a lot of poetry. Bad analogy. Memory is a muscle, not a quart jar.

Myth No. 3: Everyone needs an iPod. You do not need an iPod. Memorize poetry instead.