1. Read customer testimonials before you buy anything. People are more than pleased to complain about bad service online, so look for sites and testimonials which are terrible so you know what you're getting into. You ought to take bad reviews with a grain of salt, but if you see many, you know there is a problem.
2. Be careful in regards to the online stores that you consider buying from. If the online store is poorly designed, packed 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. Do more research on the online store you are looking at before ordering a product from them. If a store does not provide quality service or products, you will more than likely find some negative reviews published on other sites. It is best to stick to online stores with an excellent reputation.
4. Look for online coupons when shopping on the web. Many online retailers give out reductions for various things and you can see them by performing a simple search. Just enter the name from the store and coupon and you could find a great discount. This really is a great way to cut costs when you shop online.