Buying a 2011 Dodge Grand Caravan, and saving $8000 off of MSRP.
Calculate the wholesale price with the options you want, add a thin margin of 500$ - 1000 and tell the dealer this is the amount you are ready to pay. He'll say no but tell him to call you back once he is ready to sell at that price. Guess what? He'll call back the last day of the month.