It's been 20 years and "Clueless" is still one of the most influential teen movies of all time. Cher Horowitz may have made some references that today's youth might not get -- like saving herself for Luke Perry -- but her wisdom is quite the opposite of totally clueless.

Here are the 12 lessons from Cher Horowitz that are essential to life.
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A Beverly Hills teen (Alicia Silverstone) strives to make a difference. Read More