Affect vs. Effect

Affect is most often used as a verb meaning ‘to have an influence on; to act on the emotions of.'
- Correct: With that much hairspray, the wind can't affect your hair!
- Correct: The weather can affect my mood.
- Incorrect: They rearranged their living room furniture but didn't like the affect.

Effect is most often used as a noun meaning ‘result' (think ‘cause and effect') but can also be used as a verb to mean ‘to bring about.'
- Correct: A large power outage was one effect of the storm. (result)
- Correct: Only the president can effect such a change. (to bring about)
- Incorrect: Lack of sleep doesn't effect my ability to work.

- Example with both correct: The drug did not affect the disease but instead had a negative effect.

Any more vs. Anymore

Any more means ‘anything additional or further,' and often means ‘no more,' negatively.
Correct:
- We don't want any more trouble.
- Do you have any more bread?

Incorrect:
- Anymore pasta and I'll burst!

Anymore (adverb) means ‘from now on' or ‘any longer.'
Correct:
- We won't go there anymore.
Incorrect:
- Since they broke up, he doesn't see her any more.

Baited vs. Bated

Baited:
(verb) lured, enticed
- I baited the mousetrap so we'd catch the little thief!

Bated:
(adjective) suspended, abated
- We waited with bated breath while Joan opened the gift.