Online shopping is the 'thing' these days and there are a plenty of websites that bait you to buy 3.5 Inch TFT LCD Display Module with RS232 Interface and Wide Voltage and High Brightness for Equipment Use via the internet, but there's non-e that would guide you - giving out the basic fundamentals of buying stuff online. Therefore , assuming that you've got all information packed about the need to is included with goods online. Mathematics has never been cool, especially for me - so for those like me or simply otherwise I suggest you to understand the math behind the discounts and offers. Take your time - understand the cost, the discount and do some calculations; trust me you'll never get wrong. Stop Buying Things You Have already - 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 purchasing the things you already have - bear in mind there will be another day so you can get something new the next day.