Over the past six years I have been lucky (sometimes unlucky!) to have tried hundreds of different flavours. One predominant trait seems to be that of over-flavouring eliquid; you often read of vapers using up to 30% flavouring in an eliquid, which seems crazy.
There are two guides below, one for mixing with eliquids that contain Nicotine, and one for Nicotine-free eliquids.
It is important you understand that Nicotine liquid is toxic and is potentially harmful/lethal to humans and animals.
I have been working with eliquids since October 2008, including helping to develop the first UK manufactured eliquid, ECOpure, which launched in April 2009. I still have the same passion, as I am a vaper who likes to create new blended Flavours, over 60 since 2012, which I consider good enough for the market.