Booklice! OMG, I have to do battle with these darned things every summer, but I mean holy crap, they're an infestation right now! I usually only have to put up with them in my room during the summer, and occasionally other areas now and then, but this year, not only are they out way too early, they're everywhere! Scurrying all over the kitchen counter, in the bathroom sinks, in the bottom of the bathtub . . . and the thing of it is, there's nothing you can do about them! They're harmless to humans - they don't bite, they don't spread diseases or anything - but they're a nuisance, and they thrive in humidity (which we've been unseasonably humid lately).