I would not suggest WD-40 for your woodworking tools. It is an oil based product and you will very likely find oil stains on you next project. If you think Indiana is bad try fighting that problem in Florida where the average daily humidity is about 9000%. Some days I feel like I need to grow a set of gills. Most of the time I use a paste wax on my tool surfaces. Tablesaw, bandsaw, drill press, etc. It works OK but not 100% T9-Boeshield .... so so and expensive. About a year ago I had a small indoor outdoor carpet scrap I laid on my tablesaw to protect the surface while I was working on another project. It has been there ever since and is only removed when I need to use the saw. To my delight, no surface rust on the tablesaw. I think the carpet moves around just enough when something is placed on top of it acts as a mild abrasive and keeps the rust away. I still fight it on the other tools but ... I live in Florida.
