<prompt> Human: In an attempt to get my finances as orderly as possible to start seriously tackling my debt, Ive started an extremely detailed list of expenses. Ive got a whole spreadsheet where I tally every expense, every day; right now to pinpoint where Im spending excess that can be cut, as I go Ill start using it to keep myself on a budget. My problem comes with expenses my girlfriend and I split. Stuff like rent is no big deal, since we each withdraw money from our individual accounts, so my spreadsheet matches up with my bank statement. Im struggling with how to track stuff like groceries and household items. I do the grocery shopping, and she pays me back her half. So for 100 in groceries, my bank statement shows -100, then she gives me 50 in cash. Im just not sure the best way to make note of all of that on my spreadsheet. I dont want to falsely inflate my income, or falsely inflate my spending on my spreadsheet. But Im also trying to keep track of our joint total spending; so I dont want to put 50 on my spreadsheet when the cost of our groceries is 100. Any suggestions as to how others handle tracking split expenses?  <response>: Before my husband and I were married we just opened a joint checking account that we each put 100 a month into for that kind of stuff. A lot of people will say here NEVER OPEN A BANKING ACCOUNT WITH SOMEONE YOU ARENT MARRIED TOO but in our case the most either of us would have ever been out was 100 and it would have been easy enough to close the account. 