Please state in which country your phrase tends to be used, what the phrase is, and what it should be.
Example:
In America, recently came across “back-petal”, instead of back-pedal. Also, still hearing “for all intensive purposes” instead of “for all intents and purposes”.
Here’s one mnemonic l: most of the time effect is a noun, which use articles a/the. “The” ends with e and effect starts with e, so “the effect” lines up the e’s.
Or you could try RAVEN: remember affect verb, effect noun