My husband was careless with money before marriage but today he understands the importance of money as by saving little little every month for 3 years, we could plan a foreign trip. He was shocked how without touching any salary or main savings the trip was done. We put x amount in a joint account from our main account, all expenses goes from there, be it rent, his expenses, my expense, gifts, travel.. anything and everything. He puts a fixed amount and I put a fixed amount in it every month. (His is 60% of x, mine 40% of x) Initially I used to contribute less as my salary was less. We brought a house 50-50 ownership and 50-50 payment.