Is it better to use one credit card or several?

Is it better to use one credit card or several?

Q. I have a credit score of 800 and my four credit cards have close to zero balances. Is it better to charge something small on each credit card during the month and then pay it off when the bill comes? Or is it better to just use one credit card so I can keep a zero...
Will My Credit Freeze Hurt My Credit Report?

Will My Credit Freeze Hurt My Credit Report?

Q. I tried to apply for a credit card, but forgot that I put a freeze on my credit reports because my name and Social Security number were compromised by a hack at a major department store. Will this have an adverse effect on my score? — Credit concerned A....