So I ran across this article that questions certain things about the Inuyasha universe. Thought I'd share, though I feel many of these questions have been filed in by fanfiction
Inuyasha Plot Holes

That are real good questions. I mean, like Sangos quick chlothes changing. One Moment she wears her Kimono the next her slayer Outfit. Did she have it under her Kimono? Also in the first movie we see her chaning into her slayer Outfit but there they had time and in the Anime not. So what?!?!?

What leaves me also confunsed is that the whole Story only last one year. I mean, one year!?! With so many adventures and attacks, they would have been attacked at least four times a day and then Kagome had also the time to go home? That can`t be possible right?

But alas it is a really good Story and we all love it. We can all discuss here how some things are not possible but then we could have drawn the series ourself. But it is a Fantasy and we like to flee the real world towards another one, even if it doesn't make sense sometimes.
And everybody can have their own answers towards these question and (maybe) write about them in their own stories.