Open Up An Email Specifically For Promotions
While email newsletters will help you save money with coupon codes, it's not helpful when those emails lure you in to buy things you don't need. Remember, you're not saving money if something is on sale and you don't need it.

In order to help curb your spending temptations, create an email just for promotions. Log into it only when you know you need to buy something from a particular store (like new work pants or a microwave,) and search for your coupon codes only then.