I still remember how important it was for me to go save my money as a child and then hit up the corner store...
In the same token I used to collect coins that to me were rare at that young age.
I used my less precious coins to get my goods.
Then came home to find out some of my siblings helped themselves to my "precious coins".
Devastated as I was I learned at a young age "chain of custody".
My house was on fire recently and I guess maybe that is the reason of this post.
As a first component you think of understanding logistics, the basic concepts. The structure is a supply chain management concept.
Remember supply in demand and understand the chain of custody.
I send my love to all my family and friends.
Great risks alot great rewards... remember this!