You have no idea how tempted I am to indulge in a fresh new pack of pencil crayons right now. Maybe even a new pencil case to keep them in.
This could very well displace the internet, perhaps even bubble wrap, as the ultimate time-waster. And with over 150 labelled diagrams, complete with informative captions, my new colouring book could very well force me to finally commit to memory all those anatomical details which I learned in only the most rudimentary fashion in university. And then promptly forgot after the exam.
What tools do you wish you had been given in school?