Except when traitorous soldiers decide to desert.
Desert is Sand
Dessert is Sweet Stuff
D as in Dromedary has one hump; B in Bactrian has two.
The ranking of inherited English titles: “Do My Every Vile Bidding, Boy” (duke, marquess, earl, viscount, baron, baronet).
The ranking of taxonomic categories: “King Phillip’s Class Orders Family-sized Generic Spices” (kingdom, phylum, class, order, family, genus, species).
How to spell embarrass (because I could never remember how many r’s and how many s’s it had): “Having your ass exposed on the railroad is embarrassing.”
The four sides of a dreidel, including their meanings in the dreidel game. I was surprised how easy these were to remember.
Gimel = “gimme” = take all
Hei = “half” = take half
Nun = “none” = do nothing
Shin = “sh**” = pay one
Forgot it
Mine is Kings Play Chess On Fridays, Generally Speaking
I simply equate “port” with “left” because they both have four letters.
Also, to remember the order of the Presidents on Mt. Rushmore (hey, it may come up in trivia):
Left to right it’s Washington, Jefferson, Roosevelt, Lincoln
Would Jesus Rake Leaves?
mmm
How can we remember bow = front and stern = back? That’s harder and unintuitive because the “b’s” and the 5-letter words don’t match up
Well, I never nailed that one. 
Maybe remember that you wear a bow tie on the front of your body? And yo mama gives you a stern look before paddling your behind?
mmm
Go to the front and take a bow. Cher will sing If I Could Stern Back Time.
One that helps me, anyway, is SEC for the order in which I put quiche ingredients into the pan. Sausage, eggs, and cheese. Southeastern Conference in sports.
To me it’s such extremely common usage that it doesn’t need any sort of mnemonic – it’s like knowing the difference between a mast and a rudder, or a mainsail and a jib. No doubt there are old salts for whom “port” and “starboard” are equally ingrained, but in pleasure boating I needed a helpful mnemonic device.
The word “bow” is narrower than the word “stern,” just like the bow is typically narrower than the stern.
One more I just remembered: Hurst dilators have a round tip, like the U in “Hurst.” Maloney dilators have a tapered tip, like the A in “Maloney.”
One thing that drives me nuts is when people refer to the vulva as the vagina. No, you didn’t shave, bedazzle, or wax your vagina. The vag-IN-a is INside!
Idaho counties are coded on license plats as A1-Ada, A2-Adams, etc. Six letters start only one county: K-N-I-V-E-S, which have a lone letter as county prefix. Kootenai, Nez Perce, Idaho, Valley, Elmore, Shoshone.
To remember Order-Family-Genus-Species, my wife named our cats Olaf and Gus.
I also came up with one to remember the countries of Central America in order, roughly north to south:
Belize, Guatemala, Ecuador, Honduras, Nicaragua, Costa rica, Panama.
Benny Goodman Eats Honey Nut Cheerios, People.
mmm