There's One Day That I Always Lose Money...

Today's the second day in a row that my portfolio ended the day red.

+0.11% on the standard brokerage
-0.95% on the Roth IRA
+97.40 pips (yahooooooo!)

After trading for a while, I noticed that there's one day of the week that I always end up losing money if I trade and that is Thursday! I have no idea why that is, but I have since been avoiding any trading on Thursday. Is it superstition? Psychological? Blame it on the weather type phenomenon?

Avoiding it actually has saved me a lot of money. So, I pose the question to my fellow Happy Shiny Profit Takers: is there that one day of the week that you consistently lose money with your strategy? Why trade it?