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I have a credit card that I simply use to collect airline miles. I’d like to keep the interest to a minimum or avoiding it altogether. They say that by paying off the card every month you can avoid paying interest.
What does that mean and how is it done?
Do I pay off the card before they close the period and send out my statement? Or do I wait until the period is closed and I have until the payment is due to pay the outstanding balance from the statement?

Thanks for the help.

I never leave a balance on my credit card, so I’m not very familiar with how APR works. My APR is 13.99%. If I buy a $1400 laptop with my credit card and leave it on my credit card for one month (and then pay it off), how much interest will I have to pay that month?

I used cash advances and my credit card interest rate when sky high. How do I go back to the way it was? Do I have to pay off the card or does it never go back?