Absolutely. In fact, it was exactly this situation that got me my first break as a developer. Started working for a gas pipelining company (yes, urgh) as an 'administration assistant' and encountered a spreadsheet based tracking system that involved entering in the same data in six different places.
I threw together an Access database that everyone responded to very well- as you might imagine. The IT department ignored my repeated attempts to get them involved as it progressed from an Access DB to a .NET client front-end app with a MS SQL backend (that I managed to get from the company's external IT contractors).
Shortly before I left to get a "proper" job, they announced that the entire workflow system was moving to SAP, and that the work I'd done would be integrated into that system. That was five years ago... and apparently they're still using my system today.
I threw together an Access database that everyone responded to very well- as you might imagine. The IT department ignored my repeated attempts to get them involved as it progressed from an Access DB to a .NET client front-end app with a MS SQL backend (that I managed to get from the company's external IT contractors).
Shortly before I left to get a "proper" job, they announced that the entire workflow system was moving to SAP, and that the work I'd done would be integrated into that system. That was five years ago... and apparently they're still using my system today.