Most of the homes we’ve owned or lived in during our lifetime have had hardwood flooring. Our first home, a duplex in the Oakland, Calif., hills built by our dad and grandpa, had hardwood floors in the bedrooms. Kevin remembers sliding around the floor in his socks at age 5. If it’s just the floor acclimatizing, our recommendation is to do nothing and over a little time the squeaks should go away. If it’s loose nails, and with a 45-year-old floor we suspect this is the case, some re-nailing will be required. The job is simple and will cost less than $10. All you’ll need is a few four-penny finishing nails, a hammer, a nail set and a putty stick matched to the color of the floor.