Sex is probably the most fun you can have in life without gaining weight or having a hangover the next day.

If sisters were free to express how they really feel, parents would hear this: "Give me all the attention and all the toys and send Rebecca to live with Grandma."

More than Santa Claus, your sister knows when you've been bad and good.

If you talk about yourself, he'll think you're boring. If you talk about others, he'll think you're a gossip. If you talk about him, he'll think you're a brilliant conversationalist.

When shopping at Dunkin' Donuts, pretend you are the mother of nine. Say things like, 'Little David likes cream-filled and Susie wanted jelly.' That way, no one will be suspicious when you order a dozen donuts with one cup of coffee to go.

Changing schools and friends is hard on children and can often make them desperate and lonely enough to form closer ties with a sibling.

It's surely one of the strange phenomena of this decade that the most thoughtful gift you can bring a date is not flowers, chocolates, or ankle-length pearls, but a note from your doctor.