New windows
With vinyl retrofit windows fairly affordable now, it is a good idea to replace your old ones. In the past, the labor to replace windows were prohibitive. With the vinyl retrofit windows, labor is cheap, or you can even do it yourself. My brother installed the smaller windows himself at his house. The bigger windows required the help of a friend. The first window took him over an hour. Once he got the hang of it, he could do a window in less than an hour.
Make sure you get double-paned windows. We had our windows replaced, and I definitely feel the difference. In the summer, the house is cooler, and in the winter, the heat keeps in well. I don’t feel the draft by the window like I used to with our old single-pane aluminum windows.
I think new double-paned windows are worth the investment.