I was just curious, I have looked and looked and looked, and there are places all over the internet I can buy USP Grade Vegetable Glycerin from, which is great, but I was wondering is there any USP Grade VG in a local store that anyone knows of? Like Wal Mart Wal Greens etc. Personally I would like to buy probably a Gallon. But prefer not to pay shipping. I have seen some threads of ppl using Humco glycerin from walmart, some say its ok, some say it makes them sick. I would prefer it to be USP Grade VG so that I can know that its safe. I may have to buy it online, but I really hope not. Any info would be greatly appreciated! Thank ya'll so much! God Bless and Keep you! ) ~Katie~