Amazon, is a great money saver. You can find all sorts of products in various different categories with lower than the market pricing. Also a very useful rating system is present, provided by past buyers, can help you on your decision. I have been buying from Amazon, for several years and so far I have no complaints with their services.

During my thesis year, I even managed to find an incredibly rare book that was second hand and recently I purchased an awesome upcycable recycle bin, that is foldable, washable and very well designed. (Kangaroom Recycle Bags)

This is a site I would definitely recommend.