I live in Northern Va and have the same concerns. I save those little silica gel packets every time they come in a new product and put them in my tool drawers. I also salvaged a dehumidifier from a neighbor that I need to repair and set up in there. I use the wall mounted AC in the summer to keep it cool enough to work in there. Although I haven't gone back yet to insulate the ceiling, it stays really cool in there if i want it to be.
I save all my back issues of The Family Handyman magazine and love the projects and repair tips. The trouble is, I’m not always ready to do the project when the issue arrives. To make my favorite articles easy to find at a later date, I put a stick-on label on the cover and then add notes for easy reference when the time comes to do the job. — Willie Schreiber. Plus: Check out this small workshop storage solution. Small woodshop workshop on a budget