Before you sit down at your kitchen table and lose money shopping for Christmas and holiday gifts, you’d be well advised to learn the rules of the online shopping road. They can be very different from one vendor to another, so shop carefully. Some companies do a great job with customer care. Others don’t. I have been both delighted and burned several times, and I’d like to share some of my personal experiences to help you shop more safely. Amazon, the leader in online shopping, does it right from the customer perspective.