Working part-time
Part-time work is always an option for generating additional income. If this is an option you decide to take, make sure that the type of work you choose and the hours you work complement your retirement lifestyle, because what's the point of retirement if your part-time work rules your life?
When it comes to finding part-time work, some people stay within their known profession while others try a new line of work to spice up their lives. In fact, one of the big benefits of working into retirement (besides the extra money) is that it helps keep you mentally active as well as exposes you to new ideas and people. Another potential benefit is that your employer may offer health care or other employment benefits that could offset additional monthly expenses.