1. If you're considering buying a product online, check out the reviews. The reviews using their company people that have used the product can give you a great idea about the product. You could possibly find out the standard of the product, if it worked as described, and if you should make the purchase.
2. If you want to buy books online, you'll obtain a better deal if you get them used. Based on the condition you get them in, you may just end up paying a few cents plus shipping. Make sure you read the description of the book to see if you can find any damages you should be aware of.
3. Look for the right times to shop online. Often the stores that you frequent will have online sales that follow a time pattern. Many, for instance, schedule sales for the beginning of the month or at the end. When you see there's a pattern, hold off on buying anything until the upcoming sales period begins.
5. When you are searching for a location to buy an item and no results appear to be from familiar retailers, you should be hesitant about entering your information. Look for security signs from Verisign or Cybertrust, so you know the retailer is not out to take your hard earned money.