I voted "I balance the checkbook monthly, and worry if I'm $5 off. "...but it is really DH who does the labor

We also use MS Money to keep track so we always know what we have.
Before I married him I kept a running total in my checkbook register and checked that it matched with what the bank had using online banking. At that time, I also paid almost all of my bills online or via credit card, with the exception of my monthly rent check and a few other things here and there.