1. If you are making a purchase online, make sure that you use a credit card to pay for the transaction. Bank card users are protected against fraud by federal law and therefore are only responsible for $50 in these cases. Some card agencies will even go so far as to wave the $50 for you, meaning that you will not be out of pocket.
2. If you're considering buying a product online, browse the reviews. The reviews from other people that have used the product should be able to give you a great idea about the product. You could possibly find out the caliber of the product, when it worked as described, and if you should make the purchase.
3. When you're shopping online you need to be sure you know who you're buying from. If you're buying on an online auction site, only order from people that have positive feedback. On other sites look to see when they are a reputable company by searching for reviews upon them online.
4. When you are making any purchases online and you are required to create 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 a free account to buy shoes from a web retailer. If a person was able to see this password, they can have access to not only your profile on the retailer's store.
5. If you're purchasing clothes or shoes online, be careful using the sizing. Some items typically run smaller or bigger than normal. Some shopping sites will advertise if an item runs true to size. If the site doesn't list anything about sizing, glance at the reviews. In most cases, if an item is running larger or smaller, the reviewers will let you know.