1. Be wary of overdoing it. It is much easier to overspend when you find yourself 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 should you went to the mall, for instance. Give yourself a restriction and stick to it.
2. Before buying coming from a new online retailer, do your homework on them. Check online reviews from other customers to see how it handles items like customer service, shipping, and its overall buying experience. You can also look at the BBB to find out 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 about its business before you buy anything.
3. Do not forget to comparison shop when you are looking for things online. People usually do this when shopping in physical stores, but they don't think about it on the Internet. If you choose the first sale you see, you will find a chance you may miss out on a better deal elsewhere.
4. If you're considering buying a product online, check out the reviews. The reviews from other people that have used the product can give you a good idea about the product. You might be able to find out the caliber of the product, if this worked as described, and if you should have the purchase.
5. Once you enjoy the ease of frequent online shopping, it's extremely important to keep changing the passwords you use for each account. Every couple of weeks approximately, make up a new password for your bank as well as the shopping sites directly. Use abstract words, combined with numbers and other odd characters for that strongest passwords.