This is certainly good for motivation, but it won't always be as useful in paying your debt off faster. (studentloanhero.com)
If you do not pay the debt off in full within the card issuer's grace period (usually 25 - 28 days), you will pay interest on the amount you owe. (granite.org)
You could also plan for the option of paying the debt off sooner if an opportunity arises. (debtconsolidation.com)