I’d like to make the case that Tuesday is clearly the worst day of the week, as opposed to the more popularly accepted Wednesday.

It’s simple, really: Every day has a comfortable label that you can use to shape your day.

Monday: The start of the week. Hellish, maybe, but at least categorized.
Wednesday: Humpday. After Wednesday it’s all downhill. The end of the day on Wednesday can be particularly euphoric.
Thursday: The real start of the weekend, and only one day ’til Friday.
Friday: Clearly, it’s awesome.
Saturday and Sunday: Weekends rule.

What’s Tuesday? It’s wedged in there, nameless, formless, and generally craptastic.