1. When you're shopping online you have to be sure you are aware who you're buying from. If you're buying with an online auction site, only purchase from people that have positive feedback. On other sites look to see if they are a reputable company by searching for reviews to them online.
2. Be careful in regard to the online stores that you consider buying from. If the web store is poorly designed, filled with misspellings, and overall fishy, you should take your money elsewhere. These are signs that something might not be right about this store. It's preferable to be safe than sorry.
3. Always save copies of your orders and receipts from online purchases. Many stores will redirect one to a page after you've submitted a purchase detailing everything that was bought, customer information, the prices, etc. You should either print a copy of this or save a duplicate to your computer in case any issues arise before the end of the return period. Ensure that you save any emails concerning your items' status or correspondence with the company regarding your orders, too.
4. If you find a great product on your favorite site, search for it in an internet search engine before you buy it. Make note of the model number or brand, and do a quick search to ensure that you can't have it cheaper from somewhere else. You might be able to save a few dollars like that.
5. If you feel you will be making a lot of online purchases down the road, consider trying to get a separate bank card to use only for these transactions. It is simpler to track all transactions when they are the only items listed on this card's transaction records. Additionally, you don't need to worry about your own funds being compromised, even temporarily, if you are a victim of fraud.