I'll Put That In My Notes - A way to say you're going to remember how dumb someone was,

A way to say you're going to remember how dumb someone was, just to mock them later.

Person 1: You're the worst. Person 2: I'll put that in my notes.

Person 1: You're like a broken toaster. Person 2: I'll put that in my notes.

Person 1: You're the reason I'm sad. Person 2: I'll put that in my notes.