When starting on a complicated program, I've learnt over decades that the longer I draw diagrams and write code on paper before turning to the computer, the cle

When starting on a complicated program, I've learnt over decades that the longer I draw diagrams and write code on paper before turning to the computer, the clearer I am about the program and the quicker it gets done. When I get totally clear about everything, the code writes itself, and I can write it down on paper as fast as I can write. Plus then when you type it in you can really 'write clean code', or halfway clean anyway. If I start typing straight away, it tends to be spaghetti.