In the good old days of writing checks by hand, there was always a check register where each check was recorded, along with the number, the date, the payee, the amount, and maybe a little memo about what the check was for. Also, every deposit that was made was recorded, along with the date, the amount, and the source of the deposit.
QuickBooks still keeps that check register for you, and you can view it at any time. Follow these steps to open the register for your checking account (or for any account):