You don't need to mix your own, but that's something worth getting into later for it's own sake. Many vendors allow you to specify PG/VG ratios during checkout, tastyvapor.us is one. Hopefully some others will chime in with their own favorites. There are also plenty of vendors that sell VG-only juice, like cignot.com. Bear in mind that "PG = Throat Hit, and VG = vapor". By that I mean the more PG, the more of that "harsh" feeling you feel in your throat. VG has a lot less TH, but puts out more and thicker vapor. Too much VG can also leave a "waxy" feeling in your mouth that some people really hate (after a few days you hardly notice it). In my opinion, finding the right PG/VG balance for YOU is almost as important as finding the right level of nicotine.