Your credit score is one of the main items that lenders look at when determining if you qualify for a mortgage. Credit card use will affect your score, and lenders will also look at how you handle them. Misusing a credit card can damage your chances of getting approved, or even result in a rejection. For credit card mistakes that can cost you, read this article by Lindsay Konsko at US Money News:
-Paying late- this is probably the worst mistake you can make
-Over-utilizing credit
-Applying for too many cards at once
-Never getting a card at all- having a card and using it responsibly shows that you pay your debts.
-Racking up debt