It is good to do things for others.
Bill earns a bonus at the end of the week that he didn't expect to get.
Bill wants to spend his extra money on something.
Bill takes his bonus and buys canned goods to take to a food pantry, and he spends his weekend packaging and delivering food to people who need it.
Bill goes out over the weekend and spends his bonus on fun.
Bill spends his weekend with people who he thoroughly enjoys, and they do great work for the community, leaving bill with a sense of accomplishment.
Bill feels empty about his life because even when he has something extra, it doesn't do much to enrich his life.