If anyone out there has found the secret to aging with grace and wit, it has to be Betty White.

The former 'Golden Girl'-turned-'It' girl dropped by 'The Late Show With David Letterman' to deliver her personalized Top Ten List: 'Betty White Tips for Living a Long and Happy Life.'

Surprisingly, the 'Hot in Cleveland' star managed to restrain herself from hitting on Letterman, but she took a few shots at some other newsworthy celebs, including LeBron James and, of course, Representative Anthony Weiner ("Number Six: Avoid tweeting any photos of your private parts.")

But our favorite tips from the list were Number five, "Schedule a nightly appointment with Dr. Johnnie Walker" and the plain and simple Number three, "Try not to die!"