One way to really make you realize how much you are spending on something is to figure out how much it is costing you yearly.
Lets say you spend $5 every work day at Starbucks... multiply that by 5 which makes $25 per week. Multiply that by 52 and you will see that you are spending approximately $1300 per year on Starbucks. (That is the cost of two big screen TVs!)
Do this with your little expenditures and then you can decide... IS IT STILL WORTH IT???