We returned home, where my new goal was to buy more appropriate outerwear for wearing on the bike when it is really fucking cold (since I am still too fat to fit into my previous versions of outerwear and in any event, it is far from clear whether that stuff was even windproof enough for this). Cycling specific gear was right out, because it's all intended for people who are actually generating some heat, and I don't usually bother to go very fast.
I decided on the under-helmet beanie, instead of the over-the-helmet shower cap. We'll see how that works out. I probably should get some more gloves, too, since once again, after a few winters, all my spare gloves have mysteriously disappeared.
ETA: Ordered 2 pair from Nordstroms, my usual source (altho my current pair of gloves apparently came from Wilson's. I miss Wilson's.). One pair black (because how can I not) and one pair purple. I'm excited about the purple pair.