Online shopping is the 'thing' these days and there are a plenty of websites that trick you to buy Portable USB Hanging Necklace Fan Dual Fan Wearable Sports Sling Outdoor Office Travel Handheld Fan over the internet, but there's zero that will guide you - giving out basic principles of buying stuff online. So , assuming that you've got all specifics packed about the need to purchase your goods online. Mathematics has never been cool, especially for me - so for those like me or maybe even otherwise I suggest you to understand the math behind the discounts and offers. Take your time - understand the price, the discount and do some calculations; trust me you'll never fail. Stop Buying Things You Have already - The problem with most people is that they tend to buy exactly what they like - even if they already have it in abundance, which can be 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 acquire something new the next day.