Are you in charge of finances in your household? If not, do you wish you were?
I keep a budget spreadsheet for me and DH, though we don't always manage to stick to it.

DH always asks me before spending money on something that's not in our budget and sometimes I have a hard time saying no. I'm pretty good at rearranging payments though so we're usually not too tight if we go off budget. It does stress me out sometimes though.