Excel... how people use excel and the amount of waste that happens just because they don't properly know how to use 'vlookup' or 'if' simply just boils my blood.
Need to share a screen shot of your error? Paste it into excel.
Project management? Excel.
Database of assets? Excel.
Transactional information? Excel.
Incredibly complex, multi page calculations? Excel.
Kill me.
My colleague nudged me out of a stupor as I stared at the overhead projection. "Its Excel!" He whispered. "What are you on about?" I said. He was clearly mad. "The chart! He's done it in Excel". To my horror I began to see. This wasn't MS Project at all. It was subtle because the cells were so small they were almost no bigger than a pixel. I gasped and almost took the presentation off course.
It was like a mosaic. A feat. I've never seen anything like it since. Still baffles me how much effort he must have put in and the pain he must've felt every time that crappy plan inevitably moved to the right.