Maxis has posted several hints and tips for the Sims 2 Open for Business on their BBS and website. The first tip is about selling cars - to be able to do so, you need to toggle the game to Wholesale mode. This can be done by clicking the Wholesale Mode Toggle button (which looks like a lock) in the Business Build Tools panel on the Business Tracker in the right-top corner of the screen. Next, if you've had an unsuccessful makeover, all you need to do is change the appearance of the Sim (using the mirror) again, then going to the Make-up tab, and there choose to remove the selection. Finally there's also a small, six-step tutorial, about running a business. The easiest way to start is at home, and training some talents there. It's also recommended to start playing a few of the premade families in Bluewater Village, to get the hang of the game. What also might help, is building just a little, cheap home, and leaving the rest for building up a community lot business. Real Estate might also help in getting some money, through buying a community lot, building up the business' value, and then reselling it again. As final tip, Maxis says selling cheap items is good for building up customer loyalty, after which you can raise the price to make a bigger profit. For all of Maxis' tips, check out the thread by MaxoidKane at the official BBS.