Big big upvote. This works much better than the passive-agressive method of silently glaring and cleaning your screen in front of co-worker.
Here are more examples of the same technique:
"This is totally my own OCD, but it drives me crazy if..."
"Just a sec, I have to apologize, but..."
"It's probably just me, but it kills me when..."
(Don't forget to smile and be apologetic, tone is key)