Our average livings expenses over the last 10 years (after subtracting all taxes, charitable contributions, and kids college expenses) are around $77K. I don't know if we could easily get to $33K. Beyond the above expenses, the top categories:
Medical - this would be the wild card
Food - probably scrimp some and cut that in half. Also some of that cost wa buying food for others.
Auto - share a single car if forced to, would cut costs down 40%.
Home supplies/repairs/improvements: maybe cut that by half, repairs only and minimal improvements.
Gifts to others - we tend to be generous now because we can, so could cut this by 90%.
Mortgage - would be tough to get it any lower, we have a 2.875% interest rate.
Utilities - this has been on a downward trend, so likely by payng more attention we could reduce another 10%.
Vacation - stick to day or non-plane trips and use bargain hotels/points programs to cut by 50%.
Hmmm... that would knock things down to $55K. Drop spending on computers, electronics, golf only at the $8 course
, etc... I think we could squeeze down to $45K. Tough to go beyond that, but if we had no choice, we could figure out a way. Medical, of course, would be the biggest uncontrollable expense that would impact us.