Here are some tools that don’t go out of date:
- Tools for thinking, learning and understanding (the tools that help you acquire new tools);
- Tools for communicating and teaching (the tools that help you find and enlist others in your work, and help them to learn new tools);
- Tools for planning, organising and leading (tools that enable you to work effectively with others);
- Tools for making new tools (all of these tools fall into this category, but it applies to more technical skills too, from using a hammer to building a website).