I've recently played in a Serenity Cortex game, and discovered the joy that is plot points. Now, for those who aren't familiar with the system, plot points are an expendable resource given for good roleplaying and cool ideas, and which can be spent on improving a dice roll, reducing damage taken or, most interestingly to me, altering a scene slightly.
I want to find a way to include something similar in my World of Darkness game, but I'm unsure how to go about it. The reasons I want to include this, as that might help shape the responces I get, are mainly two-fold.
1) Players directly being able to interact with the set up of the world. I really like the idea that a player can spend a plot point to make the hinges on a door that I'd given little thought to rusty, and then have a better chance of kicking that door down and carrying out their well-crafted plan.
2) The way I've seen them given out appeals to me, in that they seem a small reward that I can give out for good roleplaying, good ideas etc, when I want to reward a player but a whole experience point feels too big a reward.
Has anyone else implemented something like this successfully? I am looking to do this specifically in new World of Darkness, but any suggestions from other systems are obviously welcome, as they may spark ideas or be directly transferable.