Top 1 sign that you've lost a lot of weight

So in the past few years, I've lost about 110 pounds. I've lost it pretty gradually, so at this point, I often forget how big I used to be. A couple weeks ago, Kathleen and I went to one of the local feed stores to get dogfood. This feed store is owned by our former landlord from when we moved back to Champaign about 6 years ago, and he was in the store when we came in. He recognized Kathleen, but we found while talking to him on our way out that he didn't recognize me to the point that he thought Kathleen had left me and started seeing someone else.