1. Read customer testimonials before you buy anything. People are more than pleased to complain about bad service online, so look for sites and testimonials which are terrible so you know what you're getting into. You should take bad reviews with a grain of salt, but if you see many, you know there is a problem.
2. When you are making any purchases on the internet and you are required to make a user account, never use the same passwords that you use on other websites. Do not use your e-mail or banking password to make an account to buy shoes from a web retailer. If someone was able to check this out password, they could have access to not only your profile on the retailer's store.
3. When looking for a product online, take the time to read reviews. Try finding the same product on different sites to read as many reviews as possible. Reading many reviews will help you get a more general concept of whether or not the merchandise you are interested in meets high standards of quality.
4. Be careful which sites you patronize. It is difficult to know which are on the up and up and that are not, but there are a few clues. If the address does not make sense or the design seems off, go to a different site. Furthermore, if a lot of pop-up windows begin appearing, close them out and move on.
5. Make sure that you're entering your payment details on a secure site. Search for "https://" in the URL of the site that you're attempting to buy something from. If you don't see that or no symbol of any website security, then it's probably a good idea not to trust those people together with your account information.