We keep our incomes separate; it started when I made a lot more than DW - she wanted to be her own person. Now the reverse is true, she makes a lot more than I and I want to be my own person. We share expenses, dreams, and all that but our money is our own. We discuss finances often; we discuss our investment strategies and so on but we each make our own decisions on how to get to our shared future. We are politically almost identical (we both hit almost the exact same spot on this
test - leftist libertarians).