Ask HN: Change my consumer's buying mindset.

Not sure if any of you guys have this problem too. Everytime I see a new gadget/toy/app, I would want to buy it and try. Most of the time, I dun need it, some times I know I can make a better one. But never I can get around it and actually go do it and deliver the better product to the market.

Not sure if you guys get what I mean. If you do, I appreciate some advice to get around this buying/consumer mindset, it is costing to waste my time and money on stuffs I dun really need.