This morning's train interior looked completely clean and freshly scrubbed. I don't think I've seen it like that in a long long time, if ever. The plastic floors did not have stains or trash, even the corners were clean and free of gum or candy wrappers. The windows looked wiped with no finger prints, smudges or stains.
I'm sure BART cleans the trains regularly but it seemed like a bit more effort went into cleaning this time around.
Whatever it is they did differently, it was a welcomed change to see a clean train.