Online shopping is the 'thing' these days and there are a plenty of websites that lure you to buy 10.1 Inch Intelligent TFT LCD Display Module with Serial Interface+Program+Touch Screen for Industrial Use on the web, but there's none of them which would guide you - giving out the fundamentals of buying stuff online. So , assuming that you've got all details packed about the need to purchase your goods online. Mathematics has never been cool, especially for me -- so for those like me or simply otherwise I suggest you to understand the mathematics behind the discounts and offers. Take your time - understand the price, the discount and do a few calculations; trust me you'll never make a mistake. Stop Buying Things You Currently have - The problem with many people is that they tend to buy anything that they like - whether or not they already have it in abundance, which is never a smart buyer's feature. So what you need to stop carrying out immediately is stop buying the things you already have - remember there will be another day so you can acquire something new the next day.