You never know when you might need 'em:
ΕΡΤΥΘΙΟΠΑΣΔΦΓΗΞΚΛΖΧΨΩΒΝΜ
ερτυθιοπασδφγηξκλζχψωβνμ

You never know when you might need 'em:
ΕΡΤΥΘΙΟΠΑΣΔΦΓΗΞΚΛΖΧΨΩΒΝΜ
ερτυθιοπασδφγηξκλζχψωβνμ

Okay, random, but okay…
I always like to keep a supply of greek letters, for you know, when google goes down. 
Greek letters are always useful for physicists. And chemists. Kind of.
ΔH init.