1. Be careful in regard to the online stores that you consider buying from. If the web store is poorly designed, filled with misspellings, and overall fishy, you should take your money elsewhere. These are signs that something might not be right about this store. It's better to be safe than sorry.
2. Turn it into a habit to register for price alerts. This goes even for purchases that you've recently made. Price alerts will let you know each time a product has dropped to some price you like. And if you've recently purchased at full price, you are able to ask for a price adjustment to meet the new deal.
3. While shopping online, it is crucial that you spend a little time looking at the site that you are considering buying from. You can get information about the website from other sites and the Better Business Bureau. Not researching them can lead to you getting the products you did not order or getting billed greater than you should have.
4. If you're considering buying a product online, look into 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 standard of the product, if it worked as described, and if you should make the purchase.
5. Always save copies of your orders and receipts from online purchases. Many stores will redirect you to a page after you've submitted your order detailing everything that was bought, customer information, the prices, etc. You should either print a copy of this or save a duplicate to your computer in case any issues arise before the end of the return period. Make sure to save any emails about your items' status or correspondence with the company regarding your orders, too.