I always thought that science-points lose a lot of their value in the endgame once you have unlocked the entire tech-tree, which is why I made this mod. With Kerbal R&D you can spend science points to improve the stats of the parts you have already unlocked in a career game. At first the investment will be rather small, but the cost goes up exponentially so you will always have a good reason to bring back every last bit of science from your missions. More images: http://imgur.com/a