I love 510 mega xl manuals, mainly with Boge cartomizers for my favorite thinner juices (Boge 510 standard resistance aka around 2.8-3.2 ohm because slim batteries can be damaged by LR lower resistance stuff). You can find the black ones lots of places, and white and tan ones at NiteLiteVapor
I screwed up a couple of times with just a PCC. And then I got a charging cable for at work. I prefer to have 2 charging cables at home and one at work. You can attach them to the motherboard USB of a computer (I prefer to use a more stable supply that won't be interrupted by reboots or shorted out if you get a static shock on the keyboard etc - I use 4-port 2amp AC to USB by Rosewill, one at home and one at work). Check LiteCigUSA.net and Liberty-Flights.com (press 20% off upper left front page) for 510 USB charging cables.
The Rosewill AC to USB things I use I use (can hold up to 4 charger cables, or 3 cables and one stubby no-cable battery to USB adapter on the end)
http://www.amazon.com/Rosewill-Trav...PTBG/ref=sr_1_1?ie=UTF8&qid=1313617370&sr=8-1
Re hits - nobody can judge the size of someone else's hits. I was a 1.5 PAD smoker and started vaping by trying to vape no more than I used to smoke (and I leave the ecig in another room so I don't suck on it constantly) and initially I used 1.5-2ml per day. I probably use 2ml or more per day now. Some heavy vapers use 5ml or more per day.
And don't judge vaping by anything a cartridge and atomizer does! They can be finicky, dumo juice sometimes, the stuffing can need adjustment and frequent topping off with liquid. Once you find some favorite juices and try cartomizers (like the Boge standard resistance) the ecig will provide a more consistent and less interrupted experience.
Note - you can use any 510 threaded attys or cartos 2.5 ohm or higher (2.5 would be the hotter ones and use the charge up fastest). The Boge cartos I use are 2.8-3.2 ohm)
---- for future reference - my canned carto instructions
How I fill a cartomizer (Vapor4Life for KR8 or Boge 510 for 510 which are all soft-cap w/ no inner seals and defined central air channel)
I use thin (20% or less VG) liquid or Vapor4Life WOW liquids, preferably clear liquids w/ no sediment
Filling a blank carto - I pop off the soft cap (unbent paperclip carefully in the mouth hole, not catching any wires or stuffing!). I hold some tissue against the threaded end hole. I tilt the carto and slowly drip 18 drops onto the inner wall of the carto so it slides down into the stuffing while I rotate the carto. Then I wait 15 seconds or so then I drip however many more drops the stuffing wants to soak up. Then I do clean-up. If it is leaking, I clean that up. Then I tilt the open end down into the tissue and puff hard a few times into the threaded end to clear any juice out of the central air channel (I want to see light through there). If it looks too wet above the stuffing, I gently touch a bit of tissue to the stuffing (otherwise that liquid will be gurgling or spitting in my mouth). Then since this was a fresh fill of a blank, I now let it settle. I lay the carto on different sides for 15-20 minutes. Then it should be ready to vape. If you use thicker juices than me, then you may need to let it settle longer.
As I am vaping - if the vapor gets a bit light or a bit dry or tastes bit off or the carto is getting unusually warm, I will take the carto off the battery, open it, add 6-8 drops or whatever it seems to want (I will either hold a bit of tissue against the threaded end hole just in case, or skimp on how many drops I add to make sure I avoid drips if I have no tissue). I check to make sure the threaded end is dry, give it a couple of puffs into the threaded end to make sure the air channel is clear, and continue to vape.
Note - it is easy for me to "open" my main cartos for adding juice because I replace the white end cap with a plastic or delrin drip tip (I get them at LiteCigUSA.net). So I can easily pull that out with my fingers when I add juice and it keeps my lips cool if the carto is hot.