There is an inclination among weak writers to use there at the beginning of sentences. Look at the slow-starting agglomeration of words in the previous sentence: It’s a wet noodle of a sentence ...

It is logically not correct to start a sentence with a coordinating conjunction especially while beginning a paragraph or starting a conversation with someone. Look at the sentences below: ...

Writing a strong topic sentence that establishes the subject of the paragraph Using "echo words" -- i.e., consistent terms for the concepts throughout Applying transitions to link sentences logically ...