Make Your Manicure Last ,here are some tricks

1. Never push back dry cuticles. Doing so can crack polish at the base, which leads to chipping, says New York City celebrity nail pro Deborah Lippmann, who offers tips like this in her master class, held at upscale department stores. But if you're about to change your polish, you don't want any cuticle skin on the nail's surface (it can interfere with your base coat) — so loosen ragged edges by rubbing in a softening cream. Then gently nudge cuticles back with an orangewood stick.
2. Don't soak fingertips. There's no real reason to do so (at salons, it's just part of the pampering), and, says Tom Bachick, executive vice president of the Young Nails Company, it can actually have a negative effect: When you soak your nails, they absorb water, which temporarily puffs them up — but they revert to their normal shape when the water evaporates. This expansion and contraction is the top cause of chipping, peeling, and cracking of polish, says Bachick

3. Get the surface clean, clean, clean. Any traces of moisture, dust, or leftover enamel will get in the way of new-polish adhesion. To pave the way for true staying power, drizzle an old toothbrush with hand soap; then use it to "get into the corners and under nail tips, where oil — the great enemy — may be hiding," suggests Jan Arnold, cofounder of Creative Nail Design. (Steer clear of lanolin-based soaps, which interfere with adhesion.) Then swipe on an acetone polish remover to temporarily dehydrate the nail plate.
4. Shape up. "To maximize nail strength, tips should be rounded and corners left somewhat square," says Robyn Gmyrek, M.D., an assistant clinical professor of dermatology at Columbia University, in New York City. Filing is healthier than clipping, which can crack the nail plate. Use a fine-grit nail file and work in one direction. "Filing back and forth with an abrasive board will cause the nail's delicate keratin layers to peel away from each other," says Elsbeth Schuetz, international educator for Orly.
5. Apply a base coat (no, it's not just a marketing ploy). Not only does a bottom layer give lacquer something to latch on to, says chemist Doug Schoon, vice president of research and development for Creative Nail Design, but studies show that a base coat sticks to nails better than polish does. For uneven nail surfaces, choose a base that also smooths out roughness.
6. Once lacquer is on, seal it with a slow-setting topcoat. Quick-dry kinds are certainly appealing, but they evaporate so fast, they leave polish soft, mushy, and prone to denting. A slower-acting topcoat leaves a harder, more protective finish. To speed things up without sacrificing protection, use a drying oil or spray over your topcoat.

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