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As it was taught to me by my father:
(H) He Li-kes Be-er B-ut C-upfuls N-ot O-ver F-lowing. Ne-ddy Na-turally M(g)-etaphonic Al-ways Si-ngs P-art S-ongs Cl-early.

This is dangerously off topic so I'll add this for remembering how to construct trig functions.
With the the sides of the triangle labelled Adjacent (A), Opposite (O) and Hypotenuse (H)
sin (O/H) cos (A/H) tan (O/A)                      cotan(A/O) sec (H/A) cosec (H/O)
Old Hands Always Help Other Airmen       (the same but in reverse)

And to put things back on track fully
True Variation Magnetic Deviation Compass Add West
True Virgins Make Dull Company Add Whiskey
TV Makes Dumb Children Add Wisdom