A gallon of PG and VG is a smart thing to buy. You can get gallons for about $25, or $6/qt, shipped. You can easily pay $20/qt with shipping. And when you start making up samples, and maybe putting aside base mixes (nic/pg/vg ready to flavor) you can stockpile some. With your child you might not want that to get too out of hand though, at least the stuff with nic in it.
A $50 liter of 100mg nic, at 3mg, usig 15ml a day, is a 7 year supply. it's sort of a one time lifetime buy when you are ready for that. You can vape hard, unflavored, for about $50/year. The flavoring is where the money is.
I don't know what brand of flavoring Clo is using, but I have these links for flavor suppliers, the prices are better than the one she mentioned (which I am guessing are rebranded tfa)
DIY SUPPLIERS
Bull City Vapor - Best Prices on DIY e-liquid Supplies (Capella, Flavour Art, Flavor West, Hangsen, Inawera, Flavor Apprentice)
Wizard Labs (Capella, LorAnn, Seedman, Flavor Apprentice, )
DIY E-Liquid, Electronic Cigarettes and Wholesale Nicotine & E-Cig Juice | EcigExpress (Flavour Art, Flavor West, LorAnn, Flavors Express, Natures Flavors,
Signature (TFA), Jungle Flavors, Hangsen, Tasty Puff, Inawera, Capella)
DIY E-Cig Supplies & E-Cigarette Liquid | Make Your Own E-Liquid | RTS Vapes (LorAnn, Capella, Hangsen, Flavour Art, Flavor Apprentice, FLavor Jungle,
Flavor West, Inawera, RTS blends)
Electronic Cigarettes | E-Liquids - MyFreedomSmokes (LorAnn, Flavour Art, Flavor Apprentice, MFS house blends)
http://www.diyflavorshack.com/ (House blends/brands)
Perfumers Apprentice - The Flavor Apprentice - World of Flavors (TPA/TFA)
Capella Flavor Drops - Over 75+ Water Soluble Concentrated Flavorings (Capella)
http://flavorwest.com/ (Flavor West)
DIY E-liquid Supplies - Home (Capella, Flavor West, LorAnn, Flavor Apprentice,House Blends)
Wholesale Nicotine, Bulk e-Liquid, PG, VG and Supplies Heartlandvapes Wholesale (Capellas, Flavor West, LorAnn, Flavor Apprentice, House Blends)
E-liquid Mart (Capellas, Flavour Art)
Diy E Liquid Flavoring – Wide Range Of Diy E juice Flavors In Us - (Vaping Zone VG flavor, Hangsen)
All Vaping Flavors (Flavorah)
[Concentrated Flavorings] - Nude Nicotine
Flavor Extracts - DIY e-Liquid Supplies (Madvapes)
DIY Flavors (Ellas, Flavor West, NF Organic, Flavor Apprentice, Capellas)
Product Categories Tasty Puff Flavor Drops | Tastypuff (Tasty Puff)
Vapers Tek (Molin Berry, Inwaera, German Flavors)
PG/VG
Essential Depot: Sodium Hydroxide, Lye, Potassium Hydroxide, Argan Oil, Shea Butter, Essential Oil, Fragrance Oil, Vegetable Oils, Food Grade
DudaDiesel - Biodiesel, Chemical & Solar Supplies, Alternative Energy Store
Glycerin | Bulk Apothecary