On the weaknesses of the human brain -

I generally go swim laps with Caro on Thursday nights. (For that reason, I generally spend the following Friday in a haze of tiredness, but that's something else entirely.)

This week, we went swimming yesterday because Caro wasn't going to be able to make it to the pool tomorrow. Therefore, I keep thinking today is Friday. About every two minutes. (And the haze isn't helping.)