I agree that each spouse should have some of their "own" money to spend as they see fit, but to me, it makes sense for all income to go into a single pot. Share

I agree that each spouse should have some of their "own" money to spend as they see fit, but to me, it makes sense for all income to go into a single pot. Shared expenses come from the pot, while a certain amount of spending money is set aside for each spouse each week/month/whatever. Whether that money is put into separate accounts or is just two lines in the budget doesn't really matter. (YNAB would be good for something like this, and this is actually a setup the company founder suggests). That way, you never have to deal with splitting shared expenses, there's no worrying about who's earning more, and financial decisions are by default made together, but you can still buy your LEGO with your own money.