When you know rain is on the horizon, you have to prepare. Umbrella, check! Adorable wellies, of course! Frizz serum and hair ties — we've got you covered. Below, you'll find a list of all your inclement-weather essentials for hair and makeup. Whether you plan on puddle jumping or taking a cab, these affordable beauty buys will ensure your makeup won't run and your hair won't frizz. What's that the Girl Scouts say? Always be prepared!