To keep your writing interesting and lively, variety is important. One of the primary ways variety is achieved is through sentence-length and structure. Look at the following passage.

Florida is a beautiful place. Florida has a lot of nice beaches. A lot of people visit Florida. Florida can be crowded in winter. There are many nice restaurants. There are lots of outdoor activities. There is diving and swimming. There is fishing. Florida is a popular state for tourists.

Notice how the sentence length and structure does not vary much from sentence to sentence. Every sentence sounds similar to the next, creating a dry, flat tone that is somewhat boring to read. Let's look at a revision.

Florida is a beautiful place with many nice beaches that attract a lot of visitors, especially in winter. There are also lots of outdoor activities, including diving, swimming, and fishing. Add to these attractions the many fine restaurants available, and it's no wonder Florida is such a popular state for tourists.

By condensing related details into single sentences and varying the grammatical structure of the sentences, the tone and style become more interesting.