Got the old homestead (!) cleaned up. That's a relief, and it smells better now, too.
Then I drove my skinny little butt over to Advance Auto Parts where they have a hand-held gizmo that they can connect to your horse and buggy to tell where it's got hiccups. It will tell you that, but not diagnose. Oh, well, it's a start. Yes. She's mis-firing. I decided that I'd start with the least expensive possible fix...$5 for a fuel additive that *should* do a lick and a promise on fuel line and injectors. Parts dude said if that's all that's wrong, the engine light should go out in about 50-75 miles. Next possibility is new plugs, but since my last complete tuneup, I've only put on 18,000 miles, and that was two years ago. Guess we'll see.
And I found a neighbor who wants her house cleaned on Tuesday. Six hours, maybe seven. Yay. Now if the neighbor who's hosting the HOA meeting on the 18th will just decide she wants me on the 16th, I'll breathe a little easier. Fingers crossed.