I find myself beginning sentences with conjunctions. I try to edit it out most of the time, but I'm not fanatical about it. I think it reads more clearly to the original writer than it does to a reader.
You're absolutely correct about the paragraphs. A paragraph is a tool for organizing your document. If you have only one sentence per paragraph, you're sacrificing that tool. You already have the period to separate sentences, so you should use paragraph separators to group sentences into a coherent thought.
The rule of thumb is 3-5 sentences per paragraph. It's not ironclad, but if you find yourself breaking it often, you're probably doing something wrong.
You're absolutely correct about the paragraphs. A paragraph is a tool for organizing your document. If you have only one sentence per paragraph, you're sacrificing that tool. You already have the period to separate sentences, so you should use paragraph separators to group sentences into a coherent thought.
The rule of thumb is 3-5 sentences per paragraph. It's not ironclad, but if you find yourself breaking it often, you're probably doing something wrong.