Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
My Very Educated Mother Just Served Us Noodles
My Very Easy Method Just Speeds Up Naming
Men Very Easily Make Jokes, Sometimes Using Nonsense
Memorize the first letters: M V E M J S U N
Repeat the sequence aloud several times
Write the planets in order from memory
Use flashcards with one planet per card
Practice with spaced repetition
Group the inner planets and outer planets separately
Say the order while pointing to each planet on a diagram
Test yourself daily until it feels automatic