Do a search for the user named "Hoosier" and read his blog posts. He'll go into detail enough to get you started.
eJuice Me Up is great and I recommend it. Punch in your starting nic level, your target nic level, you're batch amount, your PG to VG ratio, your flavors and then hit "Calculate" and it'll do the math for you.
But there's more to it than that. You need the equipment, too.
-1ml and 5ml syringes are a must. If you're going to make large batches, then grab up a 10 ml syringe or what have you. Try to avoid drops if you can as they aren't terribly precise.
-Gloves. You need them. Nicotine is a poison. Treat it with the utmost respect and safety.
-Make sure you have everything laid out and ready in a clean working environment with plenty of space. I will be very upset if I hear that someone spilled their nicotine at all, let alone all over the carpet, because they didn't have the room to work.
-rags/towels. I use disposable shop towels from Wal-Mart. They're good and soak it all up. I understand, sometimes accidents happen. Shoot, I just dumped half a bottle of PG the other day because the lid wasn't on it all the way. But again, see above about the nicotine.
There is plenty more, but Hoosier's blog will cover it all. I'll go find it and link it for you folks.
There are TONS of places to get what you need.
One Stop DIY Shop is one of my personal favorites, but it's by no means the only place to go.
MadVapes and
High Desert Ecigs are also top notch, just to name a few. I personally get my nic from
Wizard Labs.
EDIT: I found it. Read
this.
