Thieving after 99 or life without Pyramid Plundering

I recently got my first skilling cape in Thieving. And, yes, I did Pyramid Plundering all the way after 65. But what now? Who should I steal from and for what purpose? The Thieving after 99 or life without Pyramid Plundering article is about it. Also check it out if you don't like Pyramid Plundering but still want the cape.