I agree with Stronger.
XWH used to handle all the finances even though I worked full time as well. We were always broke.
When we split up, I was worried that I wouldn't be able to make ends meet, didn't know the timing on which bills were due when, etc.
I sat down, put everything into a spreadhseet and budgeted out the next couple of months.
Imagine my surpise when I not only got bills paid on time (or early) but also had money left over!
It does get easier with practice.
Me - 42
SorryInSac - WH#2 - 47. DDay 7/12/14
Married 4yrs, together 7yrs total
DD(21), DS(18, PDD-NOS)
5 Furkids (3 Dogs, 2 Cats)
WXH (serial cheater, 12+ OW)
Legally married 18yrs, together 16.5yrs
Note: I edit often for typos/clarity.