Ran out of AAA batteries and you couldn't be bothered going to the store but you have a 9 volt battery sitting around, then today's your lucky day.
Step 1: No AAA Batteries in the House? Not a Problem.
Well not a problem as long as you have a 9volt battery, you do don't you?
Step 2: Pry That Sucker Open.
Gently pry it open with a pair of needle-nose pliers.
Step 3: Voilà, AAA Batteries.
Step 4: One More Step...
Pull apart the metal connector tabs and bend them over so they fit into any device that takes AAA batteries.