In chapter 5 of the manga, Sakura nearly drowns and wakes up in Yukito's house. There, he claims his grandmother changed her clothes. When I saw almost
the same scene in the anime, I didn't think there was anything wrong with it. I realise the problem with it now.
Yukito's grandparents are invisible or are just non-existent. So that leaves the question: Who changed Sakura's clothes?
I'm not trying to imply that it was Yukito, by the way. I just think that this is an interesting little plot hole void of any plot devices.
... or so he claims.