Zynga points. You can use them across Zynga games to get e.g. exclusive pumpkins in Frontierville. There's a cap which resets every day, so you know when you

Zynga points. You can use them across Zynga games to get e.g. exclusive pumpkins in Frontierville. There's a cap which resets every day, so you know when you can stop playing. What. [edit to add: Not currently playing any Zynga games. League of Legends pushes my buttons much better.]