I have been cooking for many, many years. I just don't cook often. Perhaps that's why I didn't recognize this latest peeve of mine until today.
I own 3 glass measuring cups - a 1-cup, a 2-cup, and a 4-cup size. It isn't a big deal to pour into one of the cups, and then stoop down to see when you get the liquid to the correct line on the cup. Today I was going to pour ½ cup of milk into the smaller of the measuring cups while holding it at eye level. My intention was to hold the cup in my left hand while pouring the milk with my right hand. Whoa! I couldn't see the ½-cup line. I had to set the cup down on the counter, turn it around and pour into it. The metric system measurements were on the side I wanted toward me, and my good ol' cup measurements were on the other side.
I think I've always poured while holding the milk jug or whatever in my right hand. Why have I never noticed this before? When I hold them the way I want, I can't see the cup lines. Evidently I've been turning that cup around when placing it on the counter and not realizing it.
I checked all three of my measuring cups, and they are all the same. My first thought was that they were all made in Europe. Wrong! Two are Anchor Hocking and the third is Corning, and all three were made in the USA.