I've done this a few times over the years for "grins" and I don't know if there is a more powerful "financial planning/tracking tool" out there. More often than not I was out by Thursday versus having anything left to roll over. Obviously it's in your hand versus in the ether and it was amazing the affect spending cash had on me mentally and how fast it goes buying random shlt during a routine week.I am a one income household. Two kids in college. We are careful how we spend money. If we go out to eat it is Hispanic food or Chinese. Sometime Kystal's. We don't do it often. I take out 200.00-week cash for gas and other things that come up. If I have any leftover It goes to the next weeks 200.00. We go to the groceries store every Saturday. We stick to the list. We spend about 1300.00 a month on groceries. Four years ago, it was only about 900.00 a month. We are just careful.
Didn't become a habit for me but if anyone really wants to get a grip on what you are spending beyond fixed monthly expenses it's certainly eye opening.
Bunch of good thoughts in the thread but like the investment threads the factors and variables with each of us is nearly endless. Hope the OP can at least pick a few things out that might be helpful or at least know they're not alone.