As usual, I just finished repacking my suitcase, which I thought I'd packed perfectly last night.
The weather forecast for London now says it's going to be warm and pleasant every day, and chilly at night. So eliminated some cold-weather clothing for springy skirts. I've also got five pairs of shoes crammed in there, since none of them are perfect.
And I've still got more than an hour to play with the cats... and figure out what to wear on the plane.