The three most important things that I had learnt was that we should all have the "Never Say Die" attitude and never give up. I also learnt that anyone can be an entrepreneur as long as we have an idea and no idea is lousy.
I learnt how to properly arrange funds and make it easier to read and analyse the finances. This indirectly benefits my role as a treasurer too. I have also learnt the factors on how to market a product, and factors to consider in Logistics, as I used to this logistics was not much of a big problem. :/