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Excellent Kitsune! Another big +1 for you. I love this forum. Hedge, I partially answered this question a while back too, check post number 4 on Sensay's thread too if you're interested. DIY is a wonderful, and addictive!, pastime and addition to your vaping repertoire. After the initial expense getting set up, you'll be able to mix liquids for as little as 25 cents per ml. No kidding. Well, that assumes buying large quantities of the more common cooking flavorings, but even so, it's far less expensive than buying commercial liquid. To me though the best part is being able to tweak your mixes to work best with your voltage and atty, and your personal tastes. I have a pretty unusual approach to liquid mixing because I vape high voltage, but it works for me and might for you if you're at 6V or more. (If not, if you're vaping 3.7V, then stick with the more traditional levels of up to 20% flavoring and mostly PG.) For high voltage liquid, I use 100% VG base nic and as much as 48% flavoring, which can get very pricey (but still less than the cost of commercial liquid, assuming you've purchased large enough quantities of the basics kitsune mentioned). This should make more sense as you get into it more. The only thing I would caution is using drops to measure. I say this because there are too many variables using drops. Different liquids with different viscosities have way different drop sizes, so you can't rely on the 30/ml rule of thumb very well. That's how I started too, and while it does kind of work for small batches (and that's how you'll want to test your mixes!), drops do not scale up accurately. If you're going to use drops for your testing, you have to measure how many drops in 1 ml for each of your inputs. For example, using a common disposable pipette, here are the number of drops per ml for each of my basic inputs: 100MG nic Base, 100% VG -- 16 100MG nic Base, 50% VG, 50% PG -- 26 100MG nic Base, 100% PG -- 31 VG, cut with 20% distilled water -- 15 PG -- 20 Average Flavoring -- 20 So you can see that there's a lot of variance depending on viscosity of the liquid you're inputing and each dropper is different. The 30 drops/ml assumption could get you weird results if you wanted to scale up, and you'll want to measure with each dropper you use. Determining how many drops per input using your dropper is simple. Get an inexpensive graduated cylinder (the smaller the better for accuracy; mine is 10 ml and it's a bit too large for this purpose). Using your dropper, drip into the cylinder being very careful not to let any drops hit the side of the cylinder going down (if they do, they won't count properly), and count each drop until you get to the 1 ml line. You want to measure where the low part of the fluid comes right to the 1 ml line in the cylinder. Because of surface tension, the liquid will rise along the edge of the wall of the cylinder; don't measure the top of the edge, but the lower, flatter part of the surface. Hope that makes sense. Rinse and dry your cylinder and dropper between each input you're testing, and try to do this at the common temperature that you'll be working with your materials. Temp can also affect viscosity of the liquids, and even 20 degrees difference could change your measurements. You can dry the inside of your cylinder with canned air -- or a paper towel and a coat hanger. Whatever works, but dry it out so drops of water remaining won't affect your count. Don't forget to write down your count after each input! No need, probably, to ask why I mention this. You'll be able to pour most of the liquid you measured back into its container, so there isn't much waste doing this. It's really necessary for accurate record keeping. I tried to upload my calculator but for whatever reason the uploads are failing this morning. If you'd like to see it I will be happy to email the file to anyone with basic instructions how to use it. It's very simple and direct, and lets you measure your inputs in both drops and milliliters. That's all I have for now, hope it helps a little. Sorry to go off on the drops rant, but I've gotten in so much trouble with drops assumptions I wanted to get it off my chest. Have fun and as kitusne would say, Merry Mixing!