scorch wrote:So it is better to let the bill show a balance because they might close the card(s) due to non-use?
You will want to show the balance after the statement close for your credit record in general. As far as internally at the credit card company, any use will count as use on the card; you won't need to carry over the balance for that reason. You can make a purchase on the card an pay it off the same day and the credit card company will consider that usage of card, and ensure the card is not closed and credit reporting continues.
However if you want it to appear on your credit record that you are using the card, that is where you need to allow the balance to remain on there until the billing cycle ends. This is because the balance on the account when the billing cycle ends is what gets reported to the credit bureaus.