When you have a kid in diapers, you know how stinky things can get. Tossing dirty diapers into a pail next to the changing table might sound convenient, but you don't want want the odors to linger.

Resentment festered — over whose turn it was to empty the diaper pail, who was supposed to make dinner, who got coveted time to themselves. The pressures of raising a child escalated. Stress grew.