General Guidelines
* Formal Writing: In formal writing, it's generally considered better to avoid ending sentences with "and." This is because it can create a sense of incompleteness or create a choppy, childlike style.
* Informal Writing: In informal writing, ending sentences with "and" is more acceptable. It can add emphasis or create a conversational tone.
Specific Cases
* Listing Items: When listing items, using "and" at the end of the list is perfectly fine. For example, "I need milk, eggs, and bread."
* Conjunctions: "And" is a conjunction, and conjunctions are often used to connect two sentences or clauses. In these cases, the "and" typically comes at the beginning of the second clause.
* Emphasis: You can use "and" at the end of a sentence for emphasis, particularly in dialogue or informal writing. For example, "I told you to be careful, and you weren't!"
Examples
* Formal: The dog barked, and the cat hissed. (Could be rewritten as "The dog barked, and the cat hissed in response.")
* Informal: I went to the store, and I bought some groceries.
Ultimately, it's about choosing the best style for your writing. Consider your audience and the tone you want to convey. If you're unsure, it's always a good idea to err on the side of caution in formal writing and avoid ending sentences with "and."