I honesty have never known the difference between effect and affect, and when to use each. I use these words many times a day in both talking and writing but never know if it should begin with an “a” or an “e”. Because of that, I decided to look up what each mean.
After my research I found out that affect means to influence someone or something and is most commonly used as a verb. Effect means the result or impact of something and is most commonly used as a noun. There are exceptions though. Effect can be used as a verb meaning to produce.
These two commonly mixed up words can lead to confusion as they did to me. In conclusion, being educated in their definition and when to use each can clear up the unsureness many have on these two words.
(https://www.vocabulary.com/articles/chooseyourwords/affect-effect/)
Things I mean to know 
This is very interesting. I ask myself this question all the time. It is a very confusing topic, but thank you for clarifying. I even used this knowledge in a recent paper I wrote. It also reminds me of other spellings of words like gray or grey, which are both acceptable in the English language. However, grey is more spelling popular in the UK, and gray is the more popular spelling in the US (dictionary.com).
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