NavList:

Frank,

Thanks for the context regarding the Periodic Table. I hadn't made that connection.

In my attempts, I recalled:

Never Eat Soggy Worms - cardinal directions (thus on topic)

SOH-CAH-TOA - trigonometry (also on topic)

Every Good Boy Does Fine - notes on lines in treble clef (music - off topic unless you are discussing sea shantys)

F - A - C - E  -Notes in spaces in treble clef (music - off topic except per above)

Roy G. Biv - Colors of the rainbow, in order (deals with refraction - thus on topic, if your really stretching)

and the imfamous Bad boys * * * * * gives willingly - resistor color code, now definitely NSFW!