Online shopping is a 'thing' these days and there are a plenty of websites that bait you to buy W5 Pro Windows 10 MINI PC Intel Z8350 2GB 4GB RAM 32GB 64GB ROM 2.4G/5G Dual WIFI BT4.2 Built-In Fan Win10 Compute Stick online, but there's non-e that could guide you - giving out the fundamentals of buying stuff online. So , assuming that you've got all particulars packed about the need to purchase your goods online. Mathematics has never been cool, especially for me -- so for those like me or perhaps otherwise I suggest you to understand the mathematics behind the discounts and offers. Take your time - understand the cost, the discount and do a few calculations; trust me you'll never fail. Stop Buying Things You Already Have - The problem with many people is that they tend to buy everything that they like - even if they already have it in abundance, which is never a smart buyer's characteristic. So what you need to stop doing immediately is stop buying the things you already have - remember there will be another day so you can get something new the next day.