thanks, is it a lot cheaper to mix your own juice than buying premixed?
Most definitely so!
Best place for nic concentrate is Wizard Labs, great juice...great price!
My Freedom Smokes will soon be selling their brand flavors in concentrate and if you haven't tried the 4 Star General yet, I suggest you do so immediately! They are also a decent source for other concentrates.
flavorapprentice.com is the best place I've found for flavors. Really good pricing and an incredibly large selection.
As for VG and PG, you can get VG at WalMart or nearly any pharmacy but if you want really good prices buy in bulk try Bulkapothecary.com. less than $14 for 10 pounds. PG is also pretty cheap, 8 pounds for $20.
I also would consider someplace like Amazon for PG and VG.
Another thing to consider, some people I see searching for "vegetable glycerin" and really it's not necessary to worry about whether the glycerin comes from veggies or not. Well....not unless you have religious reasons for your preference. Glycerin is glycerin...if it's pure (99.5% or higher) from where it was derived makes no difference...it'll vape just the same