2 joint accounts.
One is just a "leftover" from when we sold our first house and set up a construction loan with the bank. There was a leftover checking account, that is convenient for when I have small checks to cash/deposit (like rebate checks or redemption of points from our credit card, or the kids are sent checks for birthdays or whatever). Otherwise, husband's pay is direct deposited into our credit union account (which is not convenient to us for those small little deposits as there is no branch office within 50 miles of us).
The majority of our money is managed/transacted through the credit union account.
From the day we were married, he added me onto his credit union account and pretty much I have managed it since then (just celebrated our 16th anniversary). There is an attached savings account, also. Before we were married, and while I was still working (before kids), I had my own account at a different bank also, but I never added him to it. There was no need to. He made significantly more than I did, and he had added me to "his" account, so since I was the one paying all the bills, it didn't matter that he wasn't on "my" account. I basically used it for personal expenses like gas for my car, my car payment, credit card payment and to buy groceries. I think I paid the electric bill out of that account also (it's been a few years, I can't remember exactly). I used the joint account for the mortgage payment, car insurance and his student loan.
Once we got pregnant and decided I would stay home after the birth, we started using just his account for the household, and I used what was in mine (and the income I was still earning in the meantime) towards getting ready for the baby and paying down/off debt (crib/changing dressing/rocking chair/car seat/stroller/etc and paying off my car/credit cards/ and towards his student loan). We became accustomed to living off of just his income.
We discuss our budget periodically, and husband doesn't spend a lot of random money on a day-to-day basis (gas, drive-thru dinner once a week or so, online books/music purchases). Anything else, he usually discusses with me first. Well, actually, he discusses with me and usually I am the one who ends up actually spending the money... whether it is ordering/buying a gift for someone, sending flowers to someone, buying a big ticket item for the house, car repairs, etc.
And I manage the paying of all the bills - mortgage, phones, TV, electricity, water, credit card, HOA, car insurance, etc. Have since we were married.
His money is "our" money and always has been. It works for us. If one of us had a "spending problem" then we would have to make changes to deal with that. But generally, we don't.