I know most pf bloggers would disagree with me on this one but I actually think that carrying credit cards instead of cash will save you more money. I actually have been experimenting over the past few month on what I prefer over carrying over the two. For one period of time, I went living only on cash and cash only. So that means no credit cards, no debit cards, no plastic. I would go to the ATM once a week, to my own bank to avoid the ATM...