One option that many people don't think about is to use an article template. An article template gives you a general idea and then you have to insert the topic using the idea they suggest. For example an idea would be Methods for Saving X and a topic would be Methods for Saving Money. With most templates you will have the ability to do at least two articles from it until you can come up with more topics. The two articles would be a positive and negative or upside and downside. There are a number of places you can visit for article templates. Some of them supply free templates while others charge a fee for them. You'll want to do a Google search to see what you can find and use for your articles.
Working from this generally outline, you can then break down the overall content into smaller articles that are easily digestible by readers. These can then fit into the various boxes and subheadings of the newsletter templates, for an attractive visual layout. It's recommended to break this information down into even smaller bits and pieces, including the use of bullet points and smaller boxes of facts and figures. Graphical information is helpful for business newsletters or the illustration of sales figures. These are just a few of the ways to show your message in an appealing way, which is helped along with the use of the templates.