Thank you all so much. You guys have given me great leads.
She asked me today "what are you playing on the computer?" Told her I was looking for her Christmas present. Being one who wants to know what she's getting before Christmas Day, she asked if it was something to wear. "No, but I guess you could wear them sometimes", I said. "Binoculars!" was her instant response. So much for surprise.
We'd never discussed it before. I swear she's a psychic at times. Even if I were tempted, there's no way I could ever have an affair and get away with it.
Once again, thank you one and all for your insights.