One of my life goals has been to learn the proper "alfa, bravo, charlie" alphabet so that when I'm on the phone giving my credit card number for random purchases I can say the proper, "E as in Echo" as opposed to the cooler, yet less appropriate, "E as in Egg" or "H as in Hello" or "L as in Lionel."
P.S. I used this exact tool this morning when I was trying to renew a domain name for work.
The lady at Network Solutions repeating the domain name back to me: "Is that 'N' as in Nancy?"
Me: "No. It's 'M'. Um, 'M' as in... I don't know. 'M."
The lady: "Mike?"
Me: "Yeah. I'm actually working on learning the military phonetic alphabet as we speak."
The lady: [laughs] "That's good."
It WILL come in handy.
This I know is true.