DH says we need to start using CC more to improve our credit. I hate using CC but I know they can help if used correctly.
HOWEVER -- he said it is better to wait a month before paying off the bill. We will get charged an interest fee if we do this, and I had always thought you were supposed to pay it off in full immediately, and doing that is what improved your credit.
If you want to just show you can use credit responsibly (to help your score), put a bill on your card and pay it every month. That way you have steady use on your card, and show you can pay it.
This, put something recurring on the cc, like cable or cell phones and then just pay it every month.