Mark all unread e-mails as read (Gmail)

Sometimes our inbox get flooded with hundreds of emails. It's annoying since we are lazy to read them all and most of them are junk. we can create labels and organize them but since we are lazy there is a easy way

select all unread emails
you may want to set the settings to list more items(it's on the right top corner of the list)

and mark them as read.
repeat this couple of times
and your done.
simple as that :D


i know this is common seance but i'm bored.