What are some helpful tips, tricks, hints or cheats for Mafia Wars by Zynga for the iPhone?

My Player ID is 6903 5528 70 and my handle is “AndyKatz14″ please add me to your mafia and post your code as an answer to this question so that others may add you too. Also provide any other tips or tricks that you may have. Another way to add mafia members is to use the first eight of my handle and change the last two digits. 6903 5528 70, 6903 5528 71, 6903 5528 72 ……. Thanks in advance for adding me and for your help!