Dear James: I have worked with hand and power tools for years, but recently hurt myself with no one around. What things should I include in a first-aid kit for my toolshed?—Isaac L. Dear Isaac: It definitely is a good idea to have a complete first-aid kit readily available, even if you are not alone in the toolshed or your neighbors are nearby. If you are seriously injured, it may take some time to get everything together to stabilize you until professional help arrives. Injuries, especially around power tools, often happen to the most experienced do-it-yourselfers. It is easy to get overconfident, skip safety measures to save time, and be careless. With a table saw or a sander, it takes only a split second and you can be seriously hurt. For example, at a safety class, I heard one experienced woodworker tell how he cut off the tip of his …