Getty Images; Jenny Chang-Rodriguez.BIMore than 3,300 older Americans have shared their financial and other regrets with Business Insider.Some older adults said tight budgets and a lack of savings were contributing to loneliness.This is part of an ongoing series about older Americans' regrets.Taffi Ozenne has a few simple and inexpensive joys in her life.When she feels lonely, she counts them: a hot-fudge sundae at McDonald's ($3.79), a walk with her dogs (free), and the first puff of her cigarette ($9.63 for a pack) on a sunny afternoon in northern California.