The tip to keeping your manicure fresh and chip-free all week is applying a top coat daily. This keeps the polish from becoming brittle. Which leads to chips.
This topcoat is my hands-down favorite: it literally dries almost instantly and has a great shine to it. I carry one with me in my purse at all times- just make sure to check that the top is screwed on tight every day to avoid a nail polish disaster inside your luxe handbag.