When I write, I like to plug in my headphones and listen to soothing music to help cut out the background noise.  Yesterday, wondering why my ITunes kept opening up to "I Saw Three Ships" (yes, it's Christmas music, but I only have a limited amount of quiet music without lyrics on my computer), I finally realized that the setting was stuck on Repeat One.  I'd been listening one single song for nearly a week and hadn't noticed!  I hope that means I've been concentrating hard on writing.