Ok, perhaps don't throw it away. When I come up with an idea (for an app usually), I use "a few" A4-sheets (anything between 5 and 20), scribble and draw on the

Ok, perhaps don't throw it away. When I come up with an idea (for an app usually), I use "a few" A4-sheets (anything between 5 and 20), scribble and draw on them with a pencil, draw screens, buttons, data flows, activities, write notes (in various font sizes). Then I use my CamScanner and call this a v1. Then email me the PDF and store the papers in a box, and a couple of days later I start the v2 (same process), then v3. By v4 it's 'good'. I also use the same method on my 9-5. I take VERY seriously the Abraham Lincoln quote “Give me six hours to chop down a tree and I will spend the first four sharpening the axe” on almost everything. I consider the v1, v2, v3 as the "sharpening the axe" and the v4 on the actual cutting. In that spirit, the article has a similar approach, as the v1, v2, and v3 may take you down an (more than) imperfect path.