As a PhD student taking classes, I have a lot of tasks to switch between and focus on throughout the day. Homeworks, projects, papers to read, textbooks to read, the internet. I feel like I lose a lot of time, energy, and willpower over-thinking what I should work on next. I wonder if I should just pre-prioritize my tasks at the beginning of each day or week, and then only go the next task once the first is finished (or I am stuck without progress). It seems like it would be a big investment to start a prioritization effort like that (setup costs and commitment costs). Maybe next week…

The blog Study Hacks has multiple discussions about productivity.