Today's prompt: Take your protagonist's vision away using some method--maybe the power goes out. Maybe he or she gets something temporarily blinding in his or her eyes.
How does this affect the way he or she perceives the world around them? Are there more sounds to be heard? More intonations in people's voices that they didn't notice before? Does your character suddenly notice new sounds or see the room differently from having to feel his or her way around?
This is a regular prompt of mine, and I used it at least once while I'm writing a manuscript to remind myself to use the five senses. I hope it works for you too!