I was a warehouseman in the Marine Corps in the late 90s. Our warehouse was absolute garbage. we couldn't fill something like 30% of our orders because we couldn't find the items or the inventory was off. We were also still running on nightly batches from some IBM AS400 system. I wrote a receiving program to print labels and properly assign stock locations to incoming inventory. Coupled with better control procedures we turned the ~$4MM operation around and ran at over 99% efficiency. Earned myself two NAMs for that work. It was 100% VB with a custom flat-file database.

Then I stopped working on software for ~15 years because I burned out