I like carto tanks. You punch a hole in a regular carto (or buy one prepunched) get a tank tool, get a tank. Fill the carto, slide it into the tank, fill the tank and viola! Self filling carto. IBTanked.com sells them at a reasonable price with fair shipping charges. Higher end would be a custom tank from Phinaic or one of the many other places that sell them. Cartos last longer because they are constantly wet, and when they start getting hard to hit I just pull it out and put in a new one (and time on that varies with the juice). I save them in a bag for cleaning, but have never cleaned one yet because I bought a gripload of them in a coop.
I also use RBA's now on my tube PV's, but those will leak on you if you don't keep them upright so they stay at home. When I go out, I use a carto tank though.
My favorite has become my REO with the 6 ml bottle on board that I just fill my atty with at will by pressing the bottle which feeds juice up the tube into the atty. It's like dripping, but no having to unscrew a bottle. It's a nice, self-contained PV with lots of juice and big battery. Simple, indestructible. Then I only need to take a spare battery and atty as backup, which fit nicely in one of those little battery boxes.
As for your clearo, I put some electrical tape (cuz its black and matched) around the leak and it held fine for short term. I finally just gave up, they just weren't worth waiting for the inevitable leaky mess. The vivi's were burning out heads too often and I got sick of fiddling with them also.
