In the works
In preparation, being planned or worked on.The construction of the new school is in the works.
In one`s good books/graces
Approved of by someone, liked by someone.I am in my friend's good books after helping her with her homework last month.
In one’s glory
At one's best or happiest.I was in my glory when I got the best tickets for the game.
In one`s face
Abruptly, unexpectedly.The plan blew up in our face just as we were ready to start.
In one`s element
In an environment or situation that comes naturally to someone.The woman is in her element being in charge of the new sales department.
In one’s cups
Drunk.I think that my grandfather was in his cups when he wrote the letter to his friend.
In one’s book
According to one's own opinion.In my book, she is the best teacher that we have ever had.
In one’s blood
Built into one's personality or character.Riding a horse is in the girl's blood and she is very good at it.
In one’s birthday suit
Naked, nude.The little boy was running around in his birthday suit after his bath.
In one fell swoop
As a single incident or event.In one fell swoop we sold our car and furniture and moved to Germany.