The librarian has all the information 'at his fingertips'.
He tapped on the tabletop with his 'fingertips'.
He is a gentleman 'to his fingertips'.
(..) and they stole it and now you want it back. You just wanna take back what's yours! - How? - All the power is in the city, Max, and its right at your fingertips. Once you shut down the grid... Spider-Man will come to you and I want you to make him bleed! Break it! Break it! Go... go... go. (..)2014 The Amazing Spider-Man 2