1. Be skeptical of overdoing it. It is much easier to overspend when you are shopping online. You start to rationalize that you can spend more money for those shoes because you saved money on gas and the food you would have gotten if you went to the mall, for instance. Give yourself a restriction and stay with it.
2. Many online shopping sites offer discounts if you use a "discount code". These codes can be found online by entering the words "coupon code" along with the manufacturer or name of the website you will be buying from. They might offer a percentage off or free shipping just by entering inside a simple code which can be easily found by investing a few minutes looking for it.
3. Pay close attention for potential sales online starting around Wednesday. Many brick and mortar stores do sales on the weekends, and to compete, many internet retailers have moved their sales days up by several days. You can often find exceptional mid-week bargains with just a little online research.
4. When shopping online, always try to keep in mind the price of shipping. Many sites offer free shipping on purchases over a certain quantity. In the event that you do have to pay shipping, make sure that it is going to match your budget after you've added everything for your cart. Using a full cart only to find out you are unable to afford the shipping is never an enjoyable experience.
5. 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 if you've recently purchased at full price, you can request a price adjustment to meet the newest deal.