[TheGrumpyBrit]

I found the Promotions tab to be a really handy "middle ground" between spam and actual mail. It usually contains mail from companies I've done business with, who I might be interested in receiving offers from, but I don't want those offers mixed in with my day-to-day stuff. Having them separately allows me to read them on my own time, and also lets me see at a glance if anyone is sending me too much. They're also usually the kind of companies who will honour an unsubscribe request.