Was thinking of a character I wanted to give a commonplace last name too and noticing that my default is always Jones -- I rejected Smith even though it's even commoner, because another character will be Greensmith -- looked at SSA's list of the most common last names in America, didn't like any of the really common ones, finally decided that it needed a more comic touch. So at the moment, the character rejoices in the name Loveday Perkins.
And then I was wrestling with another character who didn't seem to fit and wondering whether I should cut her, or maybe change her character, except that the character was kind of stubborn. Then I started to play with the idea of changing her name -- wise, anyway, it began with an A when another character's also did -- and that was also difficult -- and then the name "Susan" clicked, with the advantage that it, of course, brought baggage and changed the character.
Ah, the delights of names.