A mnemonic is system such as a pattern of letters, ideas, or associations which assist in remembering something. For example:
How is Accommodate spelt?
Is it Acommodate, or Accomodate, or Accommadate?
Well, Noah gave some accommodation, and he took two of everything, 2A's, 2 c's, 2 m's and 2 o's, so the correct spelling is ACCOMMODATE.
Is Address spelt with one d like adress or 2 d's like address?
ADD the address to the envelope, so it's ADD RESS.
Is it Advice or Advise?
Advice the noun has the noun ICE in it, so it's ADVICE, and so ADVISE must be the verb.
Amateur can be difficult to spell, unless you think of telling your mate how to do it:
A MATE U R
Is it Aparent or Apparent?
Apparently there is an APP for that, so it must be APP ARENT.
Beautiful can cause some problems, but:
Big Ears Aren't Ugly, they're beautiful, so it's BEAU TIFUL.
What about Bicycle? Is it Bicicle?
No, when it's ICY, don't ride your B ICY CLE.