Quote from krazykarl:
^^this. Just wait until an employer runs your credit report.
Quote from RangeBar:
It should not make one bit of difference whether they charge you 3%, 30%, or 300%.
If you aren't paying off the FULL BALANCE every month then you are mis-using your credit card. Force yourself to pay off the full balance every month (or pay in cash only) and you will find yourself wasting a lot less money and have more cash at the end of every year.