That is a neat article, thanks! I'd never seen it before but it's fairly close to what I've been doing.

I do another one and someone told me there's a technical name for it. I forget the name.

When I go shopping, I'll discretely look in shopping carts. I'll make a mental note and check to see how well the shelves are stocked in comparison to other products. If I see a lot of the same company in carts, to the point where the store hasn't matched stocking well, then I'll look further into the parent company.

So far, it has done well. I'd never played in the market before and my 401k was always managed. So, this is pretty new for me. I've been at it since maybe 2011.