I have a terrible habit of buying things on impulse and then when I get home deciding I don't like them. Often I will stick them at the back of the wardrobe or cupboard and forget about them. It's a waste of money and I have come to the conclusion that I often buy for the sake of it because I want to treat myself and then buy something I'm not sure of. I've now decided that if I'm not 100% sure that I like something I will go off and think about it for 10 minutes. If the urge to buy it goes off in that time then I know that I didn't like it enough to part with my hard earned cash. It seems to be working and saving me money. Do you buy things you're not sure of?