1. Be wary of any emails you obtain, even if they appear to be from a retailer you trust. Never click on a hyperlink that directs you to a site other than the main one you shopped on. If you do, you may become vulnerable to a gimmick. Rather than simply clicking an email hyperlink, just go up to your browser and enter the web site you want to go to. It is much safer that way.
2. When you shop online, be sure the site you happen to be on starts off with "https". The "S" means that the site is secure, which entails that you can safely enter your personal information without having to be worried about identity theft. In case a site lacks the "S" in it, you may want to avoid using it.
3. If you're considering buying a product online, browse the reviews. The reviews using their company people that have used the product will be able to give you a good idea about the product. You could possibly find out the standard of the product, when it worked as described, and if you should have the purchase.
5. Check out coupon sites. Whatever you want to buy could have coupons or discount codes. Before you purchase something, make certain you have the ability to have a few seconds and do a quick search. You could even wish to bookmark some coupon sites to have ready when you buy.