Great iPhone Apps for Parents

I recently read an article in Chicago Parent about some great apps for parents. I thought - wow, if I had only known:)
Some of my favorites are:
Sit or Squat (helps find public restrooms)
Sex Offenders (shows you all the sexual offenders around your current location)
Take Me to My Car (helps you find your car in a huge parking lot)

WHAT ARE YOUR FAVORITES?
List below.