1. Be sure that you're entering your payment details on a secure site. Try to find "https://" inside the URL in the site that you're attempting to buy something from. If you don't see that or no indication of any website security, then it's probably a great idea not to trust those people along with your account information.
2. Transform it into a habit to sign up for price alerts. It 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 prefer. And if you've recently purchased at full price, you can ask for a price adjustment to meet the new deal.
3. Learn more about the payment methods provided by the online store you are interested in. Most stores supply you with the option to pay with credit cards or with PayPal. Credit cards is a safe option only when the store has a secure server. If you do not see any details about safety, it is advisable to go through another store.
4. When a company has a newsletter, sign up. Often, companies will give sneak peeks, deals and coupon codes to people on their own mailing list. However, be careful. You don't want to sign up for every company's newsletter or you'll soon be buried under endless emails. Only join a company's newsletter in the event you really like their products and services and would use a promotion code.
5. When shopping online, choose the best shipping policy. Often times companies offer expedited shipping. However, often times getting the product one day earlier can cost you as much as twice the normal shipping price. Therefore, if you can wait on the product to arrive using normal shipping instead of expedited shipping, choose standard shipping to save money.