Good concept in Joeshwa24's post, just in dire need of a few paragraphs.
The firearms in my house are mine I suppose, but simply because I use them and can legally carry the handguns whereas she cannot. The long guns are primarily my interest, but I've often referred to my old rifle that she likes as "hers." Really doesn't matter.
I suppose the mixer is ours too, but she makes so much better use of it than I do.
I don't think I could work well in a marriage where there is "my" money and "your" money, expenses, etc. Too much complication.