The fluorescent light in my bathroom stopped working a couple of days ago, and I finally decided to see what the issue was. The bulb looked ok, so I checked the electronic ballast. Eventually, I came across a 100nf capacitor that looked like it had a crack through the middle of it, and sure enough, it tested open with the capacitance setting on my multimeter. I found a suitable replacement in my stash of junk parts, and now I no longer have to pee in the dark 😛