Is there a tool/knife that will suit all these diverse requirements? Is it not better to carry a knife that has the potential to be "useful" for the specific tasks in mind? I change my knife depending on where I am going and what I intend to do. I have a Leatherman Wave 2004, various SAKs and a range of fixed blades from which I will pick the most suitable. More often than not I will carry more than 1 knife.