I have trouble pairing my children's socks. They are so small that they can hide almost everywhere. I have no problem locating mine, they have strong colors. A nice solution for losing one-having one ruined with holes, etc, is buying many pairs of the same color and style and replenishing them when lost or ruined. And a hole must be fixed at once before it gets very big. Wearing the socks for shorter periods of time and taking care of your nails can help avoiding holes!