Working in I.T., we see our fair share of swag from shows like Oracle Open World. One big thing that always seems to be a hot commodity is laptop bags/backpacks. They are used daily and a simple brand logo on the front goes a long way.
Pens are always useful, especially if they have a stylus point on the top.
Who can go wrong with t-shirts ever? Simple, easy and straight to the point.
I am a coffee junkie, so the mug got my vote.