The last part of the last movie (spoilers if you haven't read DH)

[eggplant107]

"Carol" <justcarol67 at ...> wrote:

> regarding Harry's suit: Do you think
> it should be old-fashioned because the
> film WW is about fifty years behind 
> the times in terms of Muggle dress
> (and technology)? 

Harry is not as bad at dressing like a Muggle as most Wizards but by
the time of the Epilogue Harry will have been out of the Muggle world
for 20 years and he is just not up to date on modern Muggle fashions,
so his cloths are well made but very conservative; with his glasses he
looks like a successful accountant, but that is after all not a bad
disguise.

 Eggplant Gellert Grindelwald