Living in Minnesota the seasonal changes I live with here take me to all ends of the spectrum in both temperature and humidity, creating several challenges for me in the shop that through the years I have come to except as normal. Wood movement is one of those things but it is something I can plan for or at least try to account for it when designing and building furniture, and for whatever reason I really don't seem to get a lot of questions about it. But I do seem to get a lot of questions about rust prevention when it comes to hand tools and the machines that I have in my shop, and honestly this is a concern for me but it is certainly not one that I tend to over think or dwell on very much. Really there are only two things that I do to avoid rust issues, the first is being aware that saw dust and wood shavings cause moister to collect on metal surfaces, so when I'm done using my table saw for example I'll use a rag and wipe off the surface of the table. The second is using my oil rag can, this is nothing more then an old rag that has been tightly rolled up and stuffed into an old soup can then moistened with some three in one oil. Making sure the rag is protruding from the opening as in the picture, I hold the can end in my hand then wipe the surface with the rag end like an applicator. I use this on almost everything, my hand planes, my chisels, the table of my band saw, I even wipe down my lathe with it. Anytime you walk into my shop you'll always see it laying around so that when I'm done with a tool I can give it a quick wipe before I put it away. It's one of those things that I remember my father always using and I often wondered if it was something he had learned from his father ? Maybe. And maybe I'm carrying on some grand family knowledge of much wiser men before me, or maybe not. But all joking aside I do know that rusty tools and equipment have never been an issue in my shop, and for this reason I will continue with what I do.