There are lots of mnemonics on English To remember the planets in order: My very easy memory just seems useful naming planets. To spell because: Betty eats cakes and uses six eggs. To covert between millimeters centimeter meters etc. King Henrys daughter makes delicious chocolate muffins. ( each letter is a decimal place) Was there something specific you wanted to remember ?

There is one to remember mathematical order of operations... "Please excuse my dear Aunt Sally" to describe Parenthesis, exponents, multiplication, division, addition, subtraction.

Naughty Elephants Squirt Water to remember North East South West on a compass :)

Richard Of York Gave Battle In Vain Some Officers Have Curly Auburn Hair Till Old Age

There usually is, but they're usually created as-needed. Here are some popular ones, if you can guess what they actually describe: Every Good Boy Deserves Fruit. Face. Roy G Biv My Very Easy Method: Just Set Up Nine Planets. (ah, the old days)