Nicole DeConinck. Photograph by Adele M. Pleatman. Having cashed her McDonald’s paycheck at a check cashing outlet in Boston’s South End neighborhood, Nicole DeConinck has completed one half of her Friday afternoon ritual. She will now walk to a nearby pharmacy to purchase a debit card, which she’ll use to make her purchases. More Americans like DeConinck say they have used non-traditional financial services, such as check cashing, or are getting loans from places like pawn shops, payday lenders, or firms that offer advances on IRS refunds. In 2011, 41 percent had, up from 36 percent in 2009, according to the Federal Deposit Insurance Corp., which insures U.S. commercial banks. One thing fueling this growth is that non-bank loans, whic…