Another Tip for those wanting to earn more gold quicker. As most of you already know, there are four delivery guys that bring gold to your complex. The Present offers the most and barrels the second most. I now have 3 of the 4 delivery guys bringing me presents and am working on the fourth.
To do this: Let all delivery guys deliver to your complex and with no one in the receiving area...close the game completely. Now restart the game (should see title page load up)and see what delivery guys you have...let all 4 show up before you start. Hopefully you have your first present guy and if not, repeat above. Once you have one delivery guy with a present make sure that he is the ONLY one showing in the receiving area and quickly close down the game COMPLETELY. When you open the game back up, he will still be there and now you will have 3 new and fresh delivery guys. Keep doing this until you get your second present bearing delivery man. Now make sure that you only have the TWO present guys showing and shut down again completely. When you restart the game, those two will still be standing there to deliver and you will have two new delivery guys. Keep repeating above until eventually you will have all four delivery guys bringing you awesome gifts of gold.
Enjoy and have fun...I am