According to Marie Claire's March 2013 issue, if your client has a minor chip on their nails between services, they can dab a touch of rubbing alcohol directly on the area to remove oils. Then follow with a spot of matching color over the chip. Two minutes later, apply a top coat.
If clients are prone to post-mani chips, advise them to try a nude shade that mimics skin so it's less visible.
"Steer clear of metallic and matte finishes that tend to accentuate imperfections and are harder to cover up," LA-based manicurist Jenna Hipp told Marie Claire.