I use an istick 20W with the bending adapter when I'm at work because it folds down and fits nicely in my vest pocket. It saves the threads and also has a floating pin so it always makes a good connection.
http://hthttp://www.discountvapers.com/eleaf-istick-20w-bending-adapter/tp://www.discouhttp://www
Eleaf iStick Bending Adapter
cause it was gonna be a lonnnnnnng 