- Jul 18, 2016
Fill it out for the whole year. It's not very tedious. Just do it for a week. Copy and paste it four times to get a month.
Fill in all the cells you use every month and then copy and paste the block of four 12 times to get the year.
And then you can play 'what if' with your expenditure.
I've been doing this for about eight years. It is helpful.
I'm using Open Office.