Measure Once Cut Twice

I made some new curtains for the dinning room, but I apparently didn't measure correctly.  The one was about 8 inches longer than the other one.  This has been corrected and they look great.
I have had this fabric around the house for years and just decided it was time for it to go. It was either make something or sell it.  I have a little more left I'll see if I can use it somewhere else or else it will be in the next yard sale.
Have you ever miss measured when sewing?