A quick to do list is necessary for me, just because if  I don't do it I tend to forget what I have to do after I finished a task 😅 
So it helps me to quickly move on to the next task, rather than wondering what I actually have to do next, and forgetting half of it and their respective priority...

Otherwise yeah I agree, the "just do it" technique works. 
You fight procrastination directly, and it starts a virtuous circle, in which the urge to procrastinate is lower and lower. It's like fightning an addiction by just "not eating", "not drinking", "not smoking" etc... It's hard, but it works.