The document introduces the Total Cost of Ownership (TCO) analysis method for comparing the full costs of owning different homes. It provides a case study comparing a newly constructed high-performance home to an older resale property in Ithaca, NY. The TCO analysis saves potential buyers money in 6 steps: 1) Comparing estimated energy costs over 30 years ($250,000 savings), 2) Optimizing mortgage insurance, 3) Factoring electric vehicle savings, 4) Lower maintenance/water costs, 5) Resulting overall savings of $355,000 versus the resale home. The analysis shows buyers how to maximize savings through energy-efficient construction and transportation.