Online shopping is a 'thing' these days and there are a plenty of websites that lure you to buy 50PCS Black and White Skull Graffiti Sticker Waterproof Trolley Case Notebook Skateboard Sticker Sticker online, but there's nothing that will guide you - giving out the basics of buying stuff online. Therefore , assuming that you've got all facts packed about the need to buy your goods online. Mathematics has never been cool, especially for me - so for those like me and even otherwise I suggest you to understand the math behind the discounts while offering. Take your time - understand the cost, the discount and do a lot of calculations; trust me you'll never fail. Stop Buying Things You Curently have - The problem with the majority of people is that they tend to buy exactly what they like - regardless if they already have it in abundance, which can be never a smart buyer's characteristic. So what you need to stop undertaking immediately is stop buying the things you already have - keep in mind there will be another day so you can get something new the next day.