Thanks Paula. Linda advocates an incremental approach to energy reductions which, when properly planned, eventually gets you to a deep reduction. In our experience, there are almost always (especially in 100 year old houses!) low cost baby steps that can meet most budgets. And depending on your location, your state or utility may have incentive programs. Of course, step one is a whole house energy audit by a certified professional. You should expect that to cost $400-500, but in my opinion is one of the very best investments you can make in your house. A good one will give you the kind of roadmap Linda outlines in this post that you can chip away at over whatever timeframe you wish. Our comprehensive guide to energy audits may be a helpful place to start. Good luck!