My work rig consists of just my 2 simple eGo 650's - soon to become 1000mAH! I accompany them with 2 3.5ml DCT's and a couple of C-tanks with various flavors.
I don't really 'travel' per se, that won't be happening until the TSA has been disbanded. I don't do the "Paperien, bitte...(your papers please!)" routine. I remember the lessons of history...