I've tried a lot of mascaras, both drugstores and high-ends, but I always end up coming back to this one by Maybelline.
It's the only thing that keeps my short, straight Asian lashes curled! And it does what it claims to do — volumize. The waterproof formula is a plus although it still smudges a tiny bit on days that are really hot and humid. The price point is very reasonable considering you are supposed to change your mascara every 3 months. Works, affordable. Why change? :)