This past Friday I took my car in to have a weird transmission problem looked at.
Conveniently, the same Friday was also the start of the rainy season.
At about the same time, the drain in my bathroom sink went from "a bit slow" to "really slow and backing up into the sink with nasty sewage". Based on the symptoms it's seems like a grease-based blockage, and the most effective way to fight that is with an enzyme-based product (that info is courtesy of the Internet, which knows all). The closest store that I'd expect to carry such a product is more than 3 miles from my apartment. And it's raining all the frickin' time. Grr.
My parents are coming to visit from Thursday through Sunday, and there's no way the drain will be clear by then (these products supposedly are not very fast-acting). I haven't even heard anything about my car.