you are beautiful.

You are beautiful. What is it about those three little words that makes it almost impossible for us to accept them graciously?

At best, we squirm uncomfortably. At worst, we not only disbelieve it on the inside, but we reject it on the outside, too.

Oh, no. I'm not. My sister, now she's beautiful. Or Christie Brinkley, she's super beautiful. Or Meryl Streep, she's got a certain je ne sais quoi beauty about her. But me? No, no. I'm OK, I guess. But I wouldn't say I'm beautiful.

Luckily, plenty of other people would.

Enter Operation Beautiful.

Around the beginning of the summer, Caitlin Boyle, a 25-year-old urban planner from Orlando, FL, stuck a yellow Post-It note up on the mirror of her doctor's office women's restroom. It read, 'You are beautiful.'

Caitlin photographed it and blogged about it, requesting her readers to do the same thing. Post-It. Mirror. Beautiful.

Two days later, based upon the dozens of photographs of Post-Its she was already receiving, Caitlin launched OperationBeautiful.com, where she posts the photographs of notes women send her.

They read 'You are beautiful,' 'You're amazing, just the way you are,' 'You are enough,' 'Smile － you are more than your weight, or 'Your butt looks terrific in that outfit.'

They're being posted on diet books, food and drug products in stores, on gym lockers, under windshield wipers, and on doctors' scales.

Boyle says she is dumbfounded by the huge response Operation Beautiful has gotten.

"To me, it's crazy," she says. "but when people participate, they realize they're not just helping a stranger feel better; they feel better, too."

So, what will your note say today, and where will you put it??