1. If you are making a purchase online, ensure that you use a credit card to pay for the transaction. Credit card users are protected against fraud by federal law and are only responsible for $50 in these cases. Some card agencies will even go so far as to wave the $50 for you, which means that you will not be out of pocket.
2. If you're considering buying a product online, look into the reviews. The reviews from other people that have used the product can give you a good idea about the product. You may be able to find out the caliber of the product, if it worked as described, and if you should create the purchase.
3. 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 your account to buy shoes from a web retailer. If someone was able to see this password, they could have access to more than simply your profile on the retailer's store.
4. Many online shopping sites offer discounts if you use a "discount code". These codes are easily found online simply by entering the words "coupon code" along with the manufacturer or name of the website you will be buying from. They may offer a percentage off or free shipping simply by entering within a simple code which can be easily found by investing a few minutes looking for it.
5. If you want to buy books online, you'll get a better deal if you get them used. Depending on the condition you receive them in, you may just end up paying a few cents plus shipping. Make sure you read through the description of the book to see if you can find any damages you should be aware of.