How The Ghosts Stole Christmas - S6-E6
Corrected entry: At The Beginning, when Scully is parked in her car next to Mulder's, she says 'it's Christmas Eve, I have wrapping to do'. The shot turns to the gifts in the back of her car and every one of them is already wrapped.
Correction: I fail to see how this is a mistake, she did not say she had to wrap all the packages in her car just that she had wrapping to do, which she does with the other packages. Many stores offer complimentary gift wrapping and it is very common to see people out shopping with some packages wrapped and others in need of wrapping.
OneHappyHusky