Who has the Acronym pedia?

They help me learn, they assist me in teaching. I know some teachers have a love/hate relationship with acronyms.  Truth be told — I love, love, love acronyms.

How do you use acronyms, particularly acronym creating in your classrooms?  And does anyone have an Acronym-pedia?  An Acronymtionary?  Wouldn't that be a fun project?

Here's a recent acronym I used to help explain how to G.R.O.W. learners (more on how I used it in a different piece):

What's your favorite acronym and how do you use it?