I love mirrors. Light in dark places! These are the stairs going down to my basement -- a boring piece of plain white drywall holding the circuit board has been enlivened by paint (Benjamin Moore's "Deep Ocean") and an Indian fabric-bordered mirror (from Nadeau). Now you can see all the stuff I didn't get to clearing from the stairs down! But also, more importantly, sunlight. :-)
I am also feeling slightly smug that I mounted this with two drywall anchors and screws in exactly the right spot, perfectly level, without a single mistake. I am getting better at this stuff. In days past, there would have been all sorts of extra holes in the wall (hidden behind the mirror). :-)