Turns out that last infection wasn't really an infection at all. It was another bout of kidney stones. The culture came back negative for growth. So now I'm back to the land of what-the-hell? Am I just going to get kidney stones every other month or so? Grr.
My urologist gave me a number of options, ranging from cautious to invasive. Unfortuately, there weren't many in between those two extremes. I chose cautious. I have some scripts for pain meds and antibiotics that will get me through more stones without having to pay $30 to pee in a cup every time. But if I have a few more of these "sessions" over the next few months, I may start to think more about the invasive stuff.
Lauren's BEER! suggestion is sounding better and better.