I'm an 'everything in one pot'. DP earns a lot more than what I could do once I have juggled childcare. Dp is useless with money and although we would have plenty of fun money, holidays and nice clothes etc etc, we wouldn't have a pot to piddle in if left to him.
So his income goes into my current account. I pay bills and withdraw in cash what he needs for down the week, such as fuel, money for a sandwhich at work if he wants it, money for a pint after work etc etc.
I save a set amount each week for emergancies (we have a construction company so sometimes there may be a week or 2 without income) and for leaner times. I do the food shopping and buy the bread/milk etc etc.
We discuss things like holidays, new phone contracts, large expenditures and I ultimatley decide if we can afford them based on what we are working to at the minute.
I also have my own little business that doesn't really earn much but what that brings in is 'fun' money.
I am very, very lucky with my set up I know. BUT with the freedom of controlling the family spends (especially when I don't earn it) comes the responsibility of making sure things are paid and we have some monies put aside. I can be the bad guy if OH wants something (usually a holiday) and I say no but generally it works for us.
I don't think it matters how you pay your bills and divvy up whats left as long as both partners feel in control and have some say over what happens to the family money. I think without children its different. My DD is from a previous relationship and I used to work my arse off to make sure I could pay all the bills, feed us both and give her everything she needs. It came to a flash point when she was in hospital for a week, and then I had 2 weeks off work when she came home, then went back to work and collapsed with suspected kidney stones.
DP had moved in a couple of months before and we had 'his' money and 'my' money (which paid for the bills, just). DP had wanted to help with bills but I hadn't wanted to loose my independance in case things didn't work, and having lived for 10 years on my own and then manged with a baby by myself it felt odd to let someone help.
He insisted I went part time and let him help with bills, then when I got made redundant a couple of years ago he asked me to run his company (paperwork wise) and helped me set up my little business.
It works for us. And now Im PG with our first baby together so will be totally relying on him. However if it were the other way around and I could earn as much as him he would be the stay at home dad and I'd provide for the family.