I'm still young (in my 20s) and I generally just live one day at a time. I prefer the spontaneity of not planning anything. However I suppose when I decided to switch from a sedentary to a healthier lifestyle two years ago, that was my way of thinking about my future. Wanting to live to a ripe old age, while still being as active as I was when I was 10 (I didn't get lazy until half way through high school).