Alexandra D.

With the exception that you can accept the following:
You want free shipping? Meet requirements when you checkout items. Whether it's 25 or 49 dollars. Also check that your items come with the possibility of free shipping, otherwise it will NOT count towards free shipping. (Irritating, I know)
Not all of your products will be delivered when scheduled. I know that may suck, but that is why Amazon allows you to contact sellers to ensure nothing happens to your products along the way.
Some products may never find their way to your home. Which is even more irritating, but the first thing you should do is go on Amazon to contact the seller or file a complaint to Amazon directly. Every time this has happened to me I got promised a full refund within a day or two with no questions asked. (Refunds take time to get to your account. Which implies it will take longer for Amazon to process your refund, it may take up to two weeks to process the full refund)
AND SOME PRODUCTS WILL BE ABSOLUTELY HORRIBLE BUT THATS WHY WE MUST READ REVIEWS VERY VERY CAREFULLY AND DEMAND (or ask politely) THAT THE SELLER TAKES THE SAID PRODUCT BACK.
Some sellers may be very good at making sure you get the product you wanted. Every once in a while I get a card from a seller I buy from, it's handwritten by her, she makes it clear that I can contact her with any questions or concerns about the product. Those types of sellers are the ones that deserve a review, or really any seller that makes sure your product is in ideal condition when it arrives.
Make sure you review! Especially if your experience exceeds or falls below your expectations, honestly a lot of customers look at stars and reviews before they buy a product, be sure to encourage/discourage them accordingly.

Last note:
If you decide to purchase a product, make sure it's not overpriced or too cheap.

Overpricing is an obvious issue which I probably don't have to explain
But some products that are underpriced are such terrible quality, and even the sellers might not be all the great either. (That's why you ought to look at reviews!)

I can't recommend this site enough for people who wish to shop online.

I had three dresses shipped to me, and I can't believe how horrible they all turned out. The stitching is way off, and every complaint I've emailed has never been responded to. I even tried CALLING. I wasted five bucks to call out of country just to get back at these people and this is an INVALID NUMBER. I'm planning on actually filing something against these people because this is ridiculous. They charged me 23 additional dollars for shipment. My total that I wasted was 59.49, do the math and tell me if its reasonable to pay nearly 25 dollars for a mere shipment.