Start now saving for your pension, when you move on in years you just cannot imagine how having the option to retire early changes the whole game, your whole mindset and attitude to employment will change - you really can walk away, suddenly you are no longer work dependent, you will only work because you choose to work, and you will only select the sort of work you want to do, instead of what you have to do just to get by.
This is just one benefit, there are others, such as having options available if illness or other disaster strikes you or your family.