I know that the manufacturer says to dispose of the bottle when you use it. Someone told me that they use a vial in the morning and tape up the top of their vial to use 12 hrs. Latter.
They said that it works and it saves on money. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.