Does it seem like your nails are always chipping right after you finish painting them? The key to a longer lasting manicure is a good base coat and top coat. Seem like way too much time and effort? Fortunately, Sally Hansen has a product that combines both for under $5. The Double Duty Base and Top Coat ($4.37 at Amazon.com) has a panthenol forumula that smoothes nail surface and helps your color grip for longer wear. And nylon and pro-vitamin B5 formula shields nails with a hard, chip-resistant finish.