A marking knife is used for marking where you will be cutting with your saws and chisels. For getting into tight spots (like dovetails) and making very accurate lines (which is vital for tight fitting joints) you need just the right marking knife. You would think that any old knife would work, but you would be wrong. Years ago I purchased several that didn’t work well.
Always be on the lookout for usable wood. You might be able to salvage some. You can use a metal detector to find nails and screws. You don’t need a full fledged metal detector. I use a pinpointer made by Garrett. If your wood has some woodboring beetles you can still use it if not eaten too badly. A healthy dose of cyfluthrin will take care of them.
When you go shopping for tools, get the tools for your new woodworking shop only a few at a time. As your woodworking hobby progresses, you can obtain more wood tools as time goes on. We list the woodworking tools that you will find most useful and use most often. If you are going to be doing any type of woodworking, we recommend to make a custom workbench to store your tools which will also give you with an area to perform your woodworking projects. See below for what we recommend for a basic woodworking tool kit.