You can;t be too hard on yourself. Where I worked, they had a payroll company and the checks were all direct deoposited, so the stubs that came from the payroll company didn't need signing. One time they switched payroll companies, but the checks had to be real, auithentic checks. The person who was in charge of them forgot she ever had to sign checks (and has been with the comany for a hundred years!) and she sent out TWO WEEKS in a row, unsinged checks.

Even the old pros don't sign checks occassionally.