After your suggestions, I started to make my own e-juices . It is so easy that it becomes ridiculous not to do it. My juices are fine tuned to MY taste buds and nic levels to MY requirements. The quality of my juices is also as good or better than what is available on the market.
Considering that my cost for each 30ml is less than than 2$ versus 15$+ for commercial e-juices, DIY
e-liquid should be a no brainer to all vapers. If you can mix your milk and Cornflakes for breakfast you can DIY e-liquid.