Things I never noticed

The other day I was remaking my bed and grumbling about the size of queen sheets.  Even though a queen size bed is 60x80 inches, the sheets seem almost square.  I'm always turning and twisting trying to get them on right.

As I tucked the fitted sheet in around the edges I found this:

I have had these sheets for years and never noticed this helpful tag.

What else have I overlooked in my life?