Best Place to buy vegetable glycerin (food grade)?

Looking for a half gallon or a gallon. Anyone have any advice where to look locally or online?

amazon.com , has it
ebay as well... make sure it is 100%
or usp food grade quality.. easy and usually free shipping...
ps. it is hard to know where locally is when you don't post your location...

I went to cash'n'carry which is a chain, but any commercial grade food supplier will carry it for way cheap. Good call on glycerin, it makes way better tincture than alcohol plus it doesnt make your breath smell like booze!