According to Google

What does it take to be happy? An insomniac's Google search reveals some surprising answers. Happiness is . . .

being owned by cats
Camping
a Choice
Miniature Porcelain Dolls and Fine Furniture
a Serious Problem
a Rectilinear Kitten
a Dream of Fisher-Price
Dean Martin!
an equation
a warm gun
a hug from a friend when you're feeling low
a warm computer
submission to God
embracing your imperfections
just a thought away but at times it sure doesn't seem that way
another Charlie Brown site!
a boss that gives you a combination cooler/cup holder/AM/FM radio with wheels and extendable handle
FINDING A PENCIL
free and it's easier than you ever thought possible
being sad
a 7-11 within a block of your house and no office politics

Not much of a consensus, though cats, "warm" things, consumer products and an appreciation for platitudes all seem to be keys to the kingdom.