1. Always remember your budget and credit limits when shopping online. The virtual arena of online shopping has gotten a lot of people in serious debt. You need to examine online shopping in the same manner you look at offline shopping. Never buy items online that you don't have the cash to pay for.
2. Be suspicious of overdoing it. It is much easier to overspend if you are shopping online. You begin to rationalize that you can spend more money 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 limit and stay with it.
3. If you have questions while shopping, look for a live chat function on the online store. Many big brands (and even some boutique stores) now have this functionality. You can chat immediately with a customer service representative to repair any issues or answer any questions prior to buying. That can present you with a lot of reassurance.
4. Sign up for your chosen online stores' newsletters. Often times online stores will be sending out daily, weekly or monthly newsletters with special sales, discounts and deals. If you like to spend less, you might be able to score some good deals on items you were going to purchase anyway.
5. Whenever you enjoy the convenience of frequent online shopping, it's extremely important to keep changing the passwords you use for each account. Every couple of weeks or so, make up a whole new password to your bank and also the shopping sites directly. Use abstract words, combined with numbers and other odd characters for that strongest passwords.