The more you consider money unimportant and ignore it, the more attention you will ultimately have to pay to it when times are tough.
Moderation is the key.
Everyone needs a few spending priorities on which money can be spent without guilt. Keep a list of things you plan to buy in your wallet or in your mind. That way, when a great deal appears, you can act on it confidently, knowing you are making a good spending decision. Basing your spending on what you need to live, rather than on what you earn, while keeping your spending comfortably below your income level, is a significant contributor to savings. De-couple your spending and income.