I don't mind top knots, just don't like people wearing them when something more formal or even just put together is more appropriate. I too am sick of ombre hair, although mainly the really exaggrated type of ombre hair, if that makes sense.
With regards to peplum I have to disagree, while I don't own anything peplum, I'm a fan because I think it is a style that suits every possible body type, and for that I applaud it
For me I'm sick of khaki jackets with really cheap looking pleather sleeves, while I have warmed to the style now compared to when I saw them on the runways a few years ago I very much disliked the idea, I just hate the cheap looking ones and they are all over my college campus :/