I've been DIYing my own liquid for about a year. There are so many recipes & flavors out there to try that I will never be able to afford to try them all. It seems every recipe calls for abuncha flavors I still don't have. What flavors are the most versatile? For instance, there are about 20 different vanilla flavors. Instead of buying a library of vanillas, which vanillas will work best most often. I like mostly tobaccos accented w/ nut, fruit, coffee, chocolate, etc. & fruit creams but will try other stuff. I think this would apply mostly to background or secondary flavors. I use alotta TFA & Capella. Got any suggestions?