My friend Ross (an excellent illustrator and creator of animated shorts, by the way – look here – and here for more) suggested I have a look at POP – Prototyping on Paper. I did, and it’s fantastic. Very simple and intuitive to use, and you get testable results with clickable links, fast.
Here’s a proposal I made for the September 21 People’s Climate March (to which I hope you will be going – look here). Once I’d drawn the wireframes, this took about an hour and was my first real use of the app.