Keeping track of all the breast milk storage guidelines was already a maze, but trying to recalculate expiration dates every time a bottle moved—or if the baby had taken a sip—was nearly impossible. And, as someone who often left full bottles on nightstands or in diaper bags, Roxie realized there had to be a better way. After many searches for a solution that could handle all the complexities of breast milk storage, there was nothing that did it all. So, she came up with the system that does the thinking, remembering, reminding, and managing of your milk supply for you.