Jesus tells the story of a rich man who was "dressed in purple and fine linen and who feasted sumptuously every day." The man dies, is buried and finds himself in Hades being tormented. Does he have any regrets? Jesus implies that he does. But none of his regrets involve poor business decisions or missed opportunities to make money.
Choices do not have to be large to be life-changing. The rich man could have simply shared some of his food with Lazarus in order to care for the people around him.
Putting our actions in line with our beliefs -- living a life of integrity -- is a change that is made one choice at a time.
The result is a life you won't regret.