Make more kids that are addicted to CC2 waste more time on the game by adding weekly quests. They are similar to daily quests, except the weekly quests being harder to accomplish. It can be existing daily missions and pumping up the requirements. Reward is 60 MP. The 2x MP boost does not affect this. (If you think this needs to be changed, lmk)
(Despite the first sentence above, I am not trying to get more players play the game for longer times, just my idea I have)