I watched some youtube videos and it seems simple enough. Buy some VG from walmart and some nicotine juice from a website and some flavorings and wallah cheaper e juice. Here is my question. The nicotine, people mention like a 24mg bottle for example. Is the nic mixed with pg, is that where the PG comes in? In my mind... I thought there would be 4 bottles. The VG, the PG, the nic, and the flavorings. From the videos I watched I just see three. The VG, the Nic juice, and the flavoring. So I'm assuming the nic is mixed with PG that is where you get your PG. Also what is the cheapest and best quality to get the nic juice and flavorings from?