Tom McMullen was a traveling salesman who became a business broker in the 1970s to be closer to his young family.
He made a good living and enjoyed the work at his brokerage, McMullen Midwest. But he long harbored a desire to launch his own firm to produce Minnesota-made products for the disabled.
His little sister had polio in the 1950s. McMullen would hoist her on a table and help with her exercises.
"Twice a day for years," McMullen recalled of the workouts before and after school.
While dating his future wife, Trudy, in the 1960s, McMullen noticed that she walked with a limp. He thought it might have been from childhood polio.
Trudy McMullen, though, had a tumor in her spine that expanded in her 30s. She lost mobility and spent most of her last 20 years in a wheelchair. Tom McMullen quit his sales job with Olympic Stain in 1976. He needed to help with their three kids, all under 10, at the time.
This fall, McMullen began selling the first product of his "startup company," 35 years after he started tinkering at the kitchen table.
His three adult children remember the early sketches, research and musings that went into what has become ClipDifferent, an alternative fingernail clipper that is easier to use for those with arthritis, limited vision, and other dexterity challenges.