Last week, I updated my cell phone contacts for, I think, the first time ever. Lately I've found, with some regularity, I don't have a number I need. I encounter names in my directory that are only vaguely familiar, that I must have added at some point for a one-time purpose, and now clutter my system and make it hard to use. In the process of adding and subtracting, I came upon my deceased Grandmother Wolf's phone number. I paused and sat for a long time thinking about this discovery.