1. If you're purchasing clothes or shoes online, be careful using the sizing. Some items typically run smaller or larger 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.
2. When you are searching for a location to buy an item and none of the results are most often from familiar retailers, you should be hesitant about entering your data. Look for security signs from Verisign or Cybertrust, so you know the retailer is not to take your hard earned money.
3. Pay close attention for potential sales online starting as soon as Wednesday. Many brick and mortar stores do sales on the weekends, and to compete, many internet retailers have moved their sales days up by a few days. You can often find exceptional mid-week bargains with just a little online research.
4. Make sure that you're entering your payment details on a good 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 wise idea not to trust those people with your account information.
5. When shopping online, it's best to check around to find the best price. Shopping online will make it very easy to get the best price for virtually any items. While shopping around, make certain you only glance at the prices from places where you'd feel relaxed buying from. Even if a value is great, it won't matter if you don't want to order from that place.