Age ain't nothing but a number -- until we're talking puffy eyes. As you get older, your skin thins and sags, and muscles around your eyes weaken. Healthy fatty tissue that ordinarily protects the eye inside the bony eye socket can begin to move into the lower eyelids, causing them to appear puffy says Day. Fluids may also accumulate, she says.

Thankfully, there's a whole lot topical eye creams can do for puffy eyes. "Look for products that contain ingredients that make skin firmer, including niacin, vitamin C, retinol, caffeine and copper," she says. "They all have skin-firming properties and you want to make skin as firm as possible to counteract the puffiness."

We like L'Oréal Paris RevitaLift Triple Power Eye Treatment, $24.99, which uses caffeine to help reduce under-eye bags and lift the eye area. Then there's the Philosophy Ultimate Miracle Worker Eye Cream, $70, which contains vitamin C and caffeine. It promises to reduce the appearance of puffiness after two weeks use.

Life's a bit of a roller coaster -- and it can take its toll on your appearance. Lack of sleep, hangovers, stress and crying can all cause puffy eyes. Cold water, a cold compress, cold spoons (with the bowl of the spoons covering eyes) -- anything cool applied to exhausted, stressed, crying eyes will help constrict blood vessels and reduce swelling.

For an added boost, use chilled tea bags. Black tea contains caffeine that helps narrow blood veins, and green tea possesses powerful antioxidants that soothe under-eye bags. Steep two black or green tea bags in hot water and refrigerate overnight. In the morning, let the excess liquid drain off the tea bags and gently place each tea bag over closed eyes. Leave on for five minutes.

Another age-old remedy is to cover closed tired, puffy eyes with sliced, chilled cucumbers. Cucumbers contain antioxidants and flavonoids that are said to reduce swelling, redness and irritation. They contain caffeic acid, which constricts dilated blood vessels, thus reducing the appearance of the puffiness around the eyes. Try leaving 'em on your lids for 10 to 15 minutes.

If you notice that you have bags under your eyes when you wake up, but they tend to go away by noon, it's likely that fluid retention is causing your puffy eyes. While you sleep, fluids build up, resulting in bags. This is especially true if you sleep on your stomach or side.

Sleep on your back with an extra pillow elevating your head. This will allow the fluids to drain and help prevent it from accumulating in the first place. Another tip: If you wake with puffy eyes, gently tap the area with your fingertips upon rising to aid fluid drainage, or, use an eye product with a rollerball applicator to stimulate the area.

Regular concealer can work wonders on dark circles, but when it comes to getting rid of puffy eyes, consider Estée Lauder Idealist Cooling Eye Illuminator, $64.

You apply this futuristic product with a ceramic-tip applicator that is made with a material that always feels cool on the skin. Plus, it contains skin care ingredients to tighten under-eye skin as well as 'triple-optic' technology (translation: a golden, opalescent shimmer) that reflects light from shadowy areas to make dark circles appear lighter. In trials, 90 percent of women saw a reduction in the look of dark circles and puffiness after just two weeks of use.