Online shopping is the 'thing' these days and there are a plenty of websites that drive you to buy 1000 Pcs Map Tacks Push Pins Plastic Head with Steel Point Cork,Board Safety Colored Thumbtack Office School Supply online, but there's none of them which would guide you - giving out the basic principles of buying stuff online. So , assuming that you've got all facts packed about the need to is sold with goods online. Mathematics is never cool, especially for me -- so for those like me or maybe even otherwise I suggest you to understand the mathematics behind the discounts and offers. Take your time - understand the cost, the discount and do a lot of calculations; trust me you'll never go wrong. Stop Buying Things You Have already got - The problem with a lot of people is that they tend to buy exactly what they like - whether or not 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 purchasing the things you already have - keep in mind there will be another day so you can acquire something new the next day.