I explained to Gretchen that we could either be without Wi-fi on her machine until Monday or we could go pile in the van tomorrow and go down to MicroCenter and pick up a new dongle and a webcam for the other computer, which will make both machines functionally equivalent. We agreed that going to MicroCenter would be a good idea under the circumstances.
Except it turns out that I can order both a Wi-fi dongle and a webcam from Amazon. With free next-day shipping. (Having already paid for Amazon Prime.) And they will arrive on Sunday. (With two-day shipping, they wouldn't arrive until Wed.)
Oh, and it's cheaper than MicroCenter. A lot cheaper by the time you factor in the webcam.
Amazon is busy eating everyone's lunch. And this is why. Eek!