I tried Royal Flush Wax Coat Polish ($12) from cult brand Ginger and Liz, a gorgeous deep merlot shade, and was delighted with the results. It's a semisheer shade that becomes opaque in about three (fast-drying) coats, and it looks good on both cool and warm skin tones. I've been wearing Royal Flush for four days now without topcoat, and haven't seen much chipping so far. Just one catch: while free of DBP, toluene, and formaldehyde, the polish does contain phthalates. So if you're wary of them, you might want to give it a pass. Otherwise, wax on.