Ah, I had interpreted “12 times a day” as ‘every two hours’, which would require completely messing up my circadian rhythm.
Every two hours when awake isn't unusual in some conditions. Thicker stuff is used before sleeping, and you would be visually impaired if you used it every two hours during the day.
This is the public group instrumental rationality diary for December 16-31.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
Immediate past diary: December 1-15
Rationality diaries archive