balancing budgets and budgeting styles

I've been keeping careful track of what I spend money on since about 2002. I've got an Excel spreadsheet format all worked out to my liking, and I try to enter receipts weekly (sometimes more often, oftentimes less). I think I miss some small cash expenses, but I generally have a very good idea of how I (now we) spend money.

For most of my relationship with Jon, I have been the money manager. We've been a 'financial unit' since about 2005. We're both responsible with money, but over the years we've learned that we have different strategies for managing it. Jon has little interest in my money management system, but developed a different system for our several months of travel abroad. We took all of our money allocated for our travel, divided it by the number of days we expected to travel, and came up with an average daily budget. Every day we entered our expenses and income and if we overspent, we watched our daily allowance go down. This system was great for knowing exactly how much money we had to work with.

This week we he and I have had some discussions about money. Our money is pretty complicated, and I'm the one keeping track of it closely. Jon is trying to save for a new computer and we're trying to save for our wedding in April. Both of us have to set aside money for taxes because it isn't taken out of our paychecks. We're making ends meet, but we're not able to save much once the bills are paid. We had to find a way for both of us to pay attention to our spending habits.

My approach would be to make an allowance for each major expense category (food in particular) and stick to it. Jon doesn't like this approach as much, so we've just re-implemented Jon's daily average system to be sure that we meet our spending and saving goals from paycheck to paycheck. Setting aside for rent and other known expenses, we've got $15.41 per day until December 2!

What's your system?