I have always been a savy and safe online shopper because I follow these rules...
1. Only use sites that you are familiar with
If a website doesn't seem legit it probably isn't. I only use websites of name brand stores or sites like Amazon.com. Also, don't be fooled by those websites claiming to have Louboutin's and Birkin bags at sale prices. You will receive "Kristen Louboutin's" in the mail, if you know what I mean.
2. Don't go crazy!
It is easy to get overwhelmed when shopping for items online and it easy to want to buy everything because it is all infront of you. I suggest making a budget and then adding desired items to your little shopping cart on what ever website you use. Then, review your items and delete the ones you don't really need until your budget is met.
3. Use PayPal
Paypal is an easy and secure way to shop online. Paypal accounts keep your credit card information secure and make it really fast and easy to order items.
4. Order Confirmations
When ever you order from a website make sure you recieve an order confirmation email. Confirmations give you shipping information and order information incase there is a problem.
Websites tend to promotional emails along with ordering items and that can get annoying. Have a separate email for online orders.
Have fun shopping!!!