Sort emails by filesize gmail

You can now actually run a search for attachments based on size!  Approved operators:

• size:5m - Find emails with attachments of 5M
• larger:5m - Find e-mails with attachments larger than 5M

Suggested query: larger:5m older_than:2y

^ Will find all e-mails larger than 5MB and older than 2 years.

Source: http://www.mattsilverman.com/2010/01/sort-gmail-by-attachment-size.html