When you first start your home business, you may be tempted to take on any project just to establish yourself and earn some cash while you’re getting your business off the ground.  If you do this, you’re better off signing up with a reputable web site for contract work or freelance jobs instead of answering individual help wanted ads.  The reason for this is that many scams are being perpetrated by advertising opportunities to people who work at home.  These scams can cost you hundreds or thousands of dollars and may even land you in hot water with the authorities.  Follow these tips for spotting scams to stay out of trouble and keep your cash where it belongs.