I don't know I can't even think what a perfect day would have in it. Because whatever might be perfect for one would be excruciatingly boring / triggering / overwhelming or some other form of 'too' for another. Even a 'perfect day' without any of the others wouldn't be perfect because it would be lacking in so many ways. So I can't imagine any day that could be perfect.

If you could do any one thing today - anything in the world - what would it be?