Before, I could trace any bad (or good) habits with relative ease. When my toddler picked her nose for a week straight, I knew just the playmate who taught her that "skill," and when she woefully said her first curse word, I was able to trace it back to, well, me. Conversely, when she said "ready, steady, go" instead of "ready, set, go," I knew it was a phrase she picked up from her British babysitter. But now, when my kid comes home from school with a new party trick, I have no easy way of retracing the origins. In all honesty, it doesn't even make much difference — but, for better or worse, I loved feeling like a gifted detective.