Online shopping may be the 'thing' these days and there are a plenty of websites that appeal you to buy 10/20/40 LED Snowflake Light String Twinkle Garlands Battery Powered Christmas Lights Party Wedding Decorative Fairy Light on the web, but there's nothing that may guide you - giving out the basic principles of buying stuff online. Therefore , assuming that you've got all particulars packed about the need to buy your goods online. Mathematics has never been cool, especially for me -- so for those like me and even otherwise I suggest you to understand the math behind the discounts and offers. Take your time - understand the cost, the discount and do a few calculations; trust me you'll never get it wrong. Stop Buying Things You Actually have - The problem with most people is that they tend to buy everything that they like - regardless 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 purchasing the things you already have - remember there will be another day so you can buy something new the next day.