56 per month. That includes all cash transactions, automatic or manual ACH transaction, and each CC purchase. That is for a family of 4, with 2 still working and 2 in school. All expense tracking is done in a spreadsheet. Most of the tracking happens after month end when I copy/paste 2 CC statements and my electronic checkbook spreadsheet into a consolidation spreadsheet, categorize those expenses, and drag/drop to their resting place in the predetermined categories I have set up. I try to focus on the purpose of the expense. Ie, one category is "fun" which includes toys, entertainment, and liquor.
Retired in 2013 at age 33. Keeping busy reading, blogging, relaxing, gaming, and enjoying the outdoors with my wife and 3 kids (4, 10, and 11).