I'm a consultant and at every client (mostly public sector) I discover new ways of solving problems with Excel which would otherwise not get solved because the blockers to buying "the right tool" are simply too great.
At my latest client I've plotted their data on a map by colouring in cells as pixels using custom formatting and zooming right out so it isn't too blocky. It's too hard to get access to GIS software even though other departments in the same organisation have it.