This may be an odd question, but since I'm going to be getting my macbook whenever they update it, I'm probably going to be using my debit card from Washington Mutual. However, my card has a $500 daily spending limit. A friend of mine told me that I can run my debit card as a credit card and that my purchase would still be charged to my account, bypassing the daily limit. Is this true? I'm not so financially savvy, so if anyone has the know-how, I would really appreciate an explanation to this.