My boss convinced me to make a pricing calculator for our contracts using Excel with macros. I pushed back and said we need to use Power Apps, CRM, or anything other than Excel. He said it would just be a POC/wireframe we'd use to build a more permanent solution with later.

Well 5 years later, there are like 2 dozen versions floating around with different macros, pricing, etc. And of course I'm the one who gets messaged every time some makes a change and breaks the damn thing, or some sales person is convinced it's not calculating correctly. I fucking HATE that Excel sheet.