Cameron Diaz is a cougar? Oh yes -- one-time love Justin Timberlake is a younger man. Her overall low-maintenance look is just right. But her no-maintenance dark roots go a bit too far, and her hair needs a trim.

Cougar supreme, Sharon Stone, has had her share of "what was she thinking" photo opps. But when she nails it, as in this shot, nobody can touch her. Just enough makeup, emphasis on one facial feature (eyes) and elegantly simple short hair add up to a sexy, confident look.

Newly minted cougar Halle Berry is the poster girl for "Less is More." Sure, it helps to be positively stunning. But don't underestimate the magic of emphasizing assets (great skin, big eyes) and keeping everything else simple.

Bonus shot: the ultimate "Less is More" look. If you've taken great care of yourself, you owe it to yourself to show it off. Not many Hollywood twenty-something's would have the confidence to leave the house sans makeup. But Courteney Cox Arquette not only pulls it off, she looks fabulous and fresh.

Low-maintenance does not mean let everything go to the dogs and then slap a little paint on at the last minute. Rachel Hunter is a gorgeous woman, but this frizzy unkempt hairstyle and harsh eye makeup make it hard to see. Don't confuse "Less is More" with "I Don't Care."