You can't cover your ears, Mr. Bacteria. My voice is everywhere.
At work, I tend to do yoga moves intermittent to my boring, desk-forced tasks to give me a way to get out of it for a minute or two and move. I'm sure I look ridiculous to my coworkers, but it helps me stay focused on my projects and it helps break the day down a little.
I guess the way I'm creative with those un-fun tasks is to add movement into them.
As for rewards, that part I've always been very good about. I always tell myself that if I finish this required boring thing, I can then write whatever I want for the evening. Or I'll sit down and doodle once I'm done with something and my brain is fried. Or just read and daydream.