The Emotion and Decision Making Group at Harvard Kennedy School have contributed to an article that empowers shoppers to avoid common 'traps' of marketing that encourage impulsive spending. They include (1) don't make all your purchases in the one store - shop around. We don't feel the pain of cost once we've already spent a large amount, so adding to this figure is easier. (2) Bargains and discounts automatically activate our pleasure centre - so try and avoid these, or else you may end up with something you didn't want in the first place. (3) Carry cash - credit cards delay the onset of pain in our brain's pain centres, (4) Don't shop in a bad mood - you may spend more to elevate your self worth (5) Find other ways to occupy your time instead of shopping, and (6) Build will power - train your brain to be able to better inhibit impulsive tendencies.
See the link below: