At one point in my teenage life I did, boy was rent cheap! But now that is my mortgage and I am not moving for a short challenge

.
However I will think about living on say the 600 left after my oh so cheap rent from then, oh wait aside from the car I do.....Nope not gonna sell the car for a 30 day challenge either.
So that leaves utilities, gas, food, and 'other' for less than 300 a month? That is half my current budget! What did I waste it on back then! It was just me! (ciggs, but surely that wasn't all????)
I don't think I could do it now. Not for a family of 5.