After kind of a drama with Time Machine, the computer is reverted to its backed-up-yesterday state, and my windows all collapse again. It's not REALLY as easy as apple makes it out to be, cause of the OS change, and I didn't really enjoy the part where it deleted a bunch of stuff off my desktop and then was like "never mind, I quit." But after 2 hours and an embarrassing phone call to konzatsu, I have collapsing windows back again.
And now Time Machine is having some sort of twirly-bar, external-HD-grinding temper tantrum, but I'm just gonna leave it alone until it wears itself out.
Also, if you plug the toaster in and then try to hit the start button on the rice cooker, you don't really make any progress.