My wise father said the secret to a happy marriage was that one person controlled the checkbook and the other person abided by whatever rules had been set by the checkbook queen/king.
We have 2 accounts. I balance to the penny - thank goodness for Quicken. My sweetie could care less about the balancing act and let's Quicken do it all, but insists on paying all theshared bills from her account. Fine by me. I just turn in my copies of the one joint credit card receipts.