I work for a botanical garden and spend a lot of my time working in the gift shop. We have a huge pile of t-shirts, dozens of designs each in several sizes. Mos

I work for a botanical garden and spend a lot of my time working in the gift shop. We have a huge pile of t-shirts, dozens of designs each in several sizes. Most of the employees spend at least an hour going through the whole pile to figure out which shirts need to be restocked. I wrote a python script that takes an xls sales report generated by our POS system and outputs a list of all the shirts we've sold, by design, size and color. It takes me 5 minutes to go grab those shirts and put them out.