1. Make it a habit to register for price alerts. This goes for purchases that you've recently made. Price alerts will tell you when a product has dropped to a price you like. And in case 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 offered by the online store you are interested in. Most stores give you the option to pay with credit cards or with PayPal. A credit card is a safe option as long as the store has a secure server. If you do not see any information regarding safety, it is recommended to go through another store.
4. To help protect your credit, use only one credit card for online purchases. This will help you quickly track your spending habits when the charge card statement will come in the mail. If you notice any charges that you did not make, call the credit card company immediately and report it to them.
5. Be suspicious of overdoing it. It is much easier to overspend when you are shopping online. You start out to rationalize that you can spend more for those shoes because you saved money on gas and the food you would have gotten should you went to the mall, for example. Give yourself a restriction and follow it.