According to TimesOnline, a person can kid his or her instinct into spending less.
1 Give yourself - and your purse - a break
Pausing briefly between choosing something and taking it to the checkout can dramatically boost the chance of the cash staying in your purse, says a study to be published in December's Journal of Consumer Research.
2 Don't even touch your cards
Credit cards might not only anaesthetise retail pain, they may create a physical craving to get the dopamine high from spending, says Professor Drazen Prelec, a psychologist at the Massachusetts Institute of Technology.
3 Keep brands out of your brain
Designer brands have proved unprecedentedly effective at persuading you to spend more money on "special" goods that are actually only of average quality. Brands are painstakingly developed to encourage people to identify with them, to believe that their favourite labels have exactly the same human values as they do. So stay miles away from them
4 Don't shop with friends
People spend more money to maintain our self-image in front of others.
5 Staying calm costs less
People are more liable to spree when financially squeezed: under stress they can feel driven to hoard, says a study of students in Behavioural Research Therapy.