I've got a home built in 1952 that is 1500 sqft and has no wall insulation (has 6" wood lap siding + 1/2 sheetrock like firebarrier). It's built on a ventilated crawl space with 60% hardwood floors and the rest ceramic tile. No Insulation under the floor... just plastic on the dirt floor to keep the moisture out. Then there is the attic which has very old insulation over 2 bedrooms and none everywhere else. Where the insulation is is not even 3" old batt insulation that's deteriorated. I got a quote of $540 to bring the attic up to R-30 for blown insulation. I don't have the money to do everything at once and we'll probably be here for at least another 5 years so want to do it one at a time. I realize that I live in the South, but it still gets kinda cold here and lots of hot to go around. Our utilities are usually $200 or so a month. It swaps electricity with gas in the winter but usually stays around $200 for both. I've been running the stove when it's cold enough to click on the thermostat which is programmable and set at 62*. I think I'm going to cut the gas way down this year, but still want to hold in the heat and cold better. Ceiling fans in about every room. I've already tried to seal up everywhere there are leaks but the windows do let a lot out. Replacing them is not an option right now though because they aren't standard size and I've already priced those replacements. So where should I start? $550 is about all I've got to spend right now. Attic?, Floor?, Walls?