Well, I just retired. I feel I have "enough". What I didn't have before was freedom to do what I wished, when I wished, or how I wished. I now have time.... to me... the greatest gift! Financially, I would think, unless you had a huge amount of money, you would need to have a home paid for and no debt. That is where I stand...no debt of any kind. I figured how much I needed to live and guesstimated how long I'll live, and, hopefully, adjusted for inflation. I do not plan on a bare-bones existence so I factored that in as well. Time will tell. If I outlive my money at least I enjoyed my time while I still had my faculties (physical and mental).