Got up yesterday, went to work as usual. Half way through the day, began feeling a bit off; this wasn't terribly surprising since I'd been feeling as if on the verge of a cold all week. Stuck it out until 5:30, went home, did nothing all evening.

Woke up this morning, didn't feel all that bad but decided it would be safest to stay off work anyway in case things got worse. Accordingly, spent the day doing absolutely nothing on the sofa. I'd normally expect this to make me feel better, but in spite of my best efforts I now have a splitting headache of doom. I suppose that at least vindicates my hunch that today would be a good day not to go to work, but on the rather more immediate downside MY HEAD HURTS. So much for cunning plans.