I keep a kit. It's a little Caboodles makeup case,
The Sassy "It" Bag. It has elastic loops inside the lid with a vinyl overlay that I can slip my atties, cartos and slim 510 batteries in and keep them together. Then it has elasticized pockets lining the inside of the bag where I keep all of my juice bottles. It literally holds everything but my big 3.7v battery charger. My dad uses a small, inexpensive (I think it was $4 at Wal-Mart) tool box with a removable top tray with dividers. The bottom is deep enough to hold 10ml bottles of juice and the top divider trays hold his cartos.
For traveling you could swing by a Pearl Vision or Wal-Mart vision center and buy a deep, clamshell eyeglasses case. That will protect your PV and, if deep enough, may even hold up to a 10ml size bottle of juice. Some people buy a Case Logic flash drive case with the mesh pockets. Those run about eight to twelve bucks at places like Staples and Wal-Mart.
If you want to be prepared, so you won't find yourself in the throes of a nic fit and out of juice or you have two dead batteries, I recommend the following (this is for your at-home kit):
~At the very least an extra battery like a 510 slim or another eGo battery (preferably).
~A three-pack of atomizers. You never know if you're going to have one last you six months or if you'll pop two in the same day.
~A 5-pack of cartomizers
~A delrin drip tip (or two. They're cheap. I keep a few handy for when people want to try my PV. It's more sanitary that way.)
~Depending on how many milliliters of juice you go through in a day, it never hurts to have a 30ml+ size bottle of your favorite juice handy. I have quite the selection of juices, but go back to a small handful regularly. Still, I keep sample size bottles of flavors I either don't like as much or they have a higher nic strength than I vape regularly, just in case.
~A Tuberculin syringe. You never know when you'll need one to extract liquid from the bottom of a narrow mouthed bottle or to fill a carto. These hold 1cc (or 1ml) of liquid and are small enough in diameter to fit inside a small bottle.
~A thumbtack/toothpick/unbent paper clip for removing soft caps on cartomizers.
~I hang onto those small ziplock baggies vendors send with atties, drip tips and/or batteries. These come in handy when you're traveling with a bottle of juice to keep it from leaking everywhere.
~An extra charger or a USB passthrough.
~Business cards from the vendors you purchase from. I use these to give to people who see me vaping and express interest. I always keep a card for Cignot and Bluemist Vaping on me at all times.
This may seem like a lot, and some call me overly prepared (my sister says I'm obsessed to the point of overkill), but I never, ever want to go back to analogs. It also helps to employ the buddy system. If you have a friend or relative who vapes, or you think may convert to vaping, it's always nice to be able to trade juices with them or bum cartos off one another if you run out.
