"In 1961, Wagner had concerns that his wife, Doris, wouldn’t reliably take her new birth-control pills, which came in a glass bottle with a complex set of instructions. She was to begin taking a five-milligram tablet on the fifth day of her period, continue taking one a day for 20 days, then take five days off, at which point her bleeding would start. “I was constantly asking her whether she had taken ‘the pill,’ and this led to some irritation and a marital row or two,” he later recalled. So Wagner, a product engineer for Illinois Tool Works, came up with a solution: a pill dispenser in the shape of a round plastic disc, which could be rotated to reveal the dose you were to take on any given day. It held 20 pills, plus a week’s worth of pill-size dimples that indicated the off week. His jerry-built design — he fashioned it out of a child’s toy, sheets of clear plastic and double-sided tape — was quickly picked up by Ortho Pharmaceuticals, and in 1963, the company began selling the pill in a Dialpak, a round foil blister pack with pills labeled with the days of the week. “The package that remembers for her,” the company advertised in 1964. “Easy for you to explain ... for her to use,” another ad promised."