I normally use ct" which is pretty much the same but excludes the character which I find is normally more useful - if I'm changing something in quotes, then ct"

I normally use ct" which is pretty much the same but excludes the character which I find is normally more useful - if I'm changing something in quotes, then ct" makes more sense. ci" is the best one of those though (change inside ") I also have the same problem as the op, I can't use vim plugins.