Sign One: Your hot chocolate tastes odd because you forgot to add chocolate.
Sign Two: You spent the first half of your morning sending emails about this being the day you start beginning your day with deep work.
Sign Three: You have difficulty with sequencing and counting.
Sign Four: No one is in your morning all-hands meeting because it is Sunday, not Wednesday.
Sign Five: You spent the second half of your morning writing a blog post
Sign Six: The Internet is Down. Real work can begin.