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.
I know that it can be mentally taxing to try to come up with new ideas for articles. After a while you may feel like you've written about every aspect of your subject that you possibly can. Here's some good news__you don't always need to come up with new writing ideas. Sometimes all you need to do is look at your previous articles and go more in depth. Your Homework: Look at your last 5 articles In each article, search for at least one point that you covered that you could cover more in depth in a new article. No matter what your article was about, you should be able to dig a little deeper on every major point you make in your articles. You may even find some minor points that could use elaboration.