My experience matches yours. I work in a huge company, and my 20% time is more like 60% time. Every year or so I'm working on a completely new project and techn

My experience matches yours. I work in a huge company, and my 20% time is more like 60% time. Every year or so I'm working on a completely new project and technology of my choosing, which is largely what has kept me here for the last decade. I don't have to worry about the company not being able to pay its bills if it takes me a bit longer than anticipated to prove a concept, and my reputation affords me the luxury of doing so.