10. Walt's pants from the first episode show up again at the end of the series
Above, you can see a frantic Walt rolling his money barrell in season five. It's just a pair of khakis blowing by. Let's flash back to the opening minutes of the very first episode of season one:
Yep, those are the same pants, thrown with wild. He leaves the pants in the dust.
The director of the episode did tweet out this behind-the-scenes photo.