Last August, Calgary couple J.P. and Karen Jepp made international headlines after the birth of their naturally-conceived identical quadruplets, Autumn, Brooke, Calissa, and Dahlia. The baby girls were born prematurely, and suffered through some health problems, including lung infections, as a result. But now, at nine months old, the girls are healthy and fast on their way towards toddlerhood.

The Jepps' only problem? Telling their daughters apart.

The couple has come up with a unique solution for identifying each daughter: color-coding them. Autumn's assigned color is yellow, Brooke's is red, Calissa's is pink, and Dahlia's is purple. Each girl wears outfits in her given color, and J.P. Jepp admits that he and his wife have even painted the babies' toenails, so that they can tell the girls apart during bath time. Thanks to their colorful cure, they'll always know which girl is which.