I have shared many of your frustrations. I spend a lot of time at home so I usually rely on my usb passthrough + dripping to get through the day. vaping on the go seems to be my latest challenge. I recently got the xhaler and have been using the 5v option. Haven't used it out of the house much, but it seems I would need to carry a few charged sets to get through a work day. I will probably try the low resistance attys with my screwdriver next and see how that goes for a portable option. Either way it is still a pain being that I only drip now.