How can I resist the urge to spend money?

One thing you can make a list of items that you purchase and make three other columns beside it 1. Need it 2. Need it but not now 3. Dont really need it. Whenever you purchase anything, as you are able to judge, just put a tick in the relevant column, Keep seeing this list specially when you are going out for shopping. Then you will realize the number of savings you could have done if you have not purchased the things in the 3rd category. Only this can stop you!