You don't have to travel far (or spend much) to find an innovative and perfect-for-Summer foundation. Just head to your local drugstore to pick up L'Oréal Magic Nude Liquid Powder Foundation SPF 18 ($11). This bottle of seemingly ordinary foundation quickly smooths down to a silky, powder-like finish. It buffs away imperfections and evens out your skin tone for an airbrushed, "no makeup" makeup look. The airy quality gives it a lightweight feel, and since it dries down matte, it's an ideal choice for a hot and humid Summer.