Celebrity Bikini-Body Advice Includes Fewer McFlurries, More Makeup

"Skin is huge," says Marissa Miller, and she's right! It's the human body's largest organ. (AP)

McFlurries and bathing suits do not mix.

That is one of the helpful tips we got from talking to celebrities over the past few weeks about their swimsuit season secrets.

PHOTOS: 13 sexy celebs give their swimsuit season tips.

Stars including "Desperate Housewife" Eva Longoria, Victoria's Secret model Marissa Miller, and "90210" star Shannen Doherty gave FOXNew.com their best advice, from the standard ("hitting the gym") to the annoying ("stay in shape all year 'round") to the hilarious ("wear a lot of makeup").

So instead of freaking out because you still have a few pounds to go before you hit the pool, click through our celebrity advice slideshow, and see which stars' tips ring true to you.