The question i bring up to people are in the following areas when they talking about home building and the cost of heating them in the future 1-How much space do you really need 2-How many people are there in the house 3- Are you willing to spend the money now buiding it right it will pay off down the road . 4-Have you looked at earthberm or underground housing for single or couples without small childern in the group or small family with two childern or less in the group . 5-In the future how much do you want to spend on heating the place when you are living on a fixed income when you get older 6-Are you willing to put in solar power & heating & water heater & wind power system in a off grind system along with wood stove for heating now to help keep the future cost of powering or heating the place when you are older My place is about the size of a 550.ft studio apt but in a saight front to back set up with a open floor living space that make's sense to me but to someone else it would not .I put the bed area right across from the bathroom because now as i get older i do not want to make a long run to the bathroom in the middle of the night . The basement area is design to hold the supplies in a storage rack set up for the long term and short term supplies . So what you thought's are the socalled ideas i have put forth here .