<prompt> Human: My gf and I use a spreadsheet to do our monthly expenses. I make quite a bit more than her so right now, we have it at around 6040 for rentutils and 5545 for all other shared expenses. What kinds of things do you do, and how do you make it fair for both of you?  <response>: Im married, so that changes things, but below is the mentality my wife and I have.The money we make, combined, is OUR money. All decisions on money are joint decisions. We try to spend as little as possible outside of bills and expenses. For that reason, we dont get an allowance for our day to day costs; since were both cognizant of what were spending, we trust each other to spend wisely and only on things we need. If its just something we want, we discuss it with each other. There are some expensive things we like. My wife travels to see familyfriends a lot, and I cycle. Every month we get 100 into our own account that we save for these expenses. We can spend money out of this account without having to feel guiltyclear it with the other.It works for us. I dont like the idea of percentage funding account to based on salary; something about it just doesnt seem trusting of the other. Also, I make less than my wife, so that colors my opinions a bit. 