With the new weather update the money cheat and time cheat doesn't work. But there is another way to get a lot of money in a short period of time.
1) Have at least 7 neighbors on the party boat
2) Go to a sims house and place multiple Ballet stereos in the house (they'll be under the social section for free)
3) Go to the main menu and click on the little Facebook/Key lock icon,then logout of your Facebook account
4) Go back to the game and sell all of your Ballet Stereos for 1,250 each