Most people I know remember their 18th birthday and their 18th birthday party. It is difficult to forget such memorable days. Everybody can have a chance to have a day to remember. Birthdays and anniversaries are good candidates for such days. If you would like to experience days in a way you never experienced before, you need to do something exciting that you never did before. It has to be something different, something that you did not even dream about. Alternatively, you can think of what you can do for somebody else to have a day to remember. I am sure that he or she will appreciate all the effort and work you out into all the preparations.