1. Always save copies of your orders and receipts from online purchases. Many stores will redirect one to a page after you've submitted your order detailing everything that was bought, customer information, the prices, etc. You should either print a duplicate 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.
2. A good online shopping tip to remember is always to leave feedback after buying from a source you've never bought from before. This will help the two of you because you'll remember whether or not you've experienced a good experience from them, and they will also gain a reputation as a seller.
3. Before buying from a new online retailer, do some research on them. Check online reviews from other customers to see the way it handles items like customer service, shipping, and its overall buying experience. You can also look at the BBB to determine if it has any disputes and whether those disputes were resolved professionally. Try contacting the company via email and phone number, if it's posted to ask questions on its business before you buy anything.
4. 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 for those shoes because you saved money on gas and the food you would have gotten if you went to the mall, as an example. Give yourself a limit and stick to it.
5. Sign up for your favorite online stores' newsletters. Often times online stores will send out daily, weekly or monthly newsletters with special sales, discounts and deals. If you like to save cash, you might be able to score some terrific deals on items you were going to purchase anyway.