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Helpful Mnemonic Devices That Everyone Should Know 

Jacob Shelton
Updated June 15, 2019 2.2k votes 495 voters 47.3k views 20 items

Whether you know it or not, at least one mnemonic device is likely a part of your every day life. Maybe you're using these learning and memory techniques to remember the colors of the rainbow, or maybe you're using one to remember which way to turn a screw - either way, you're knee deep in mnemonic devices. While most mnemonic devices are acronyms or sayings, any learning techniques that aid information retention and improve memory can be considered mnemonic device material. So if you have to throw a coffee cup against your bedroom wall to remember that Brazil leads the world in coffee production, then you've created a mnemonic device! Good for you.

Whether you're trying to figure out the names of the strings on a guitar or the names of the Great Lakes, there's a mnemonic device for that. This list is full of easy memory tricks like these and even more mnemonic device examples. From figuring out hot to increase memory or even just how to study (or maybe remember all the guys who've played the Doctor in chronological order), these handy mnemonics will definitely help you out.

Check out this list and vote up the most helpful mnemonic devices, comment on the acronyms that you think are terrible, and feel free to add a few good useful mnemonic devices that you always rely on, if they aren't already included.
1
Righty Tighty Lefty Loosey
Ah yes, the secret code that allows anyone to tighten or loosen a screw, jar lid, or nuts and bolts.
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2
HOMES

To memorize the Great Lakes of North America, combine the first letters of each lake to form the word HOMES.

Huron
Ontario
Michigan
Erie
Superior

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3
Knuckle Months

Not only is "Knuckle Months" an excellent name for a power violence band, but it's an easy way to know how many days there are in a given month.

Count the months on your knuckles and the grooves between each knuckle (leaving out your thumb knuckle). Every month that lands on a knuckle has 31 days and every month that lands on a groove between knuckles is 30 days (or 28 for February).
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4
Your Left Hand Is the One That Makes an L
This mnemonic device is self explanatory. If you can't tell your left from right, the index finger and thumb on your left hand make an L, while the index finger and thumb on your right hand form an intricate web of lies.
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