The secret (besides eating healthy and regular exercise) is good muscle tone. Having good muscle tone gives your body a smooth appearance. A mixture of cardio and strength training would be best. (Got this info from the book at www.leansecrets.com)
Completely eliminated would require a magic wand and selling your soul but a great cheap trick I have tried and loved is taking coffee grounds and using them as a body scrub. Apply to problem areas daily, letting the "paste" linger on skin for at least 5 minutes and the caffine perks up skin cells.