Posted on July 21, 2015 by Olga Khazan in The Atlantic The Atlantic, By Olga Khazan Infants use about 240 diapers per month. A year’s supply of diapers costs $936. That means a single mother mother working full time at the minimum wage can expect to spend 6 percent of her annual pay on Pampers alone. Meanwhile, the two biggest programs that assist low-income mothers, SNAP (food stamps) and WIC, don’t cover diapers or baby wipes. That might be why, in a study of 877 pregnant and parenting women published in Pediatrics in 2013, a team of researchers found that needing diapers and not being able to buy them was a leading cause of mental health problems among new moms.