I'm wondering if anybody has a memory aid for remembering the order of Delta fare classes. Like the old "30 Days hath September ...." or "Every Good Boy Does Fine"?

And while I'm at it, any memory aid for those KL/AF/Aeroflot classes that don't earn miles with Delta if you book them elsewhere?

Just got my 10 digit Delta Frequent Flyer number reliably memorized. I'd had the old NW one for some may years, it only had 9 digits.

Thank you,

Romelle