“Write What You Know…” by Researching.
“Write what you know” is a common writing tip, and it’s fine advice, but unfortunately writers take it too literally. “What you know” includes anything you can research, and can imagine.
Let’s say that you’ve decided that you’ll write reviews as your mini projects.
Reviews are big business; there are many review sites online. However, for many small companies, reviews are VERY hard to come by. You can help these companies out, by researching their customers, and writing brief reviews. By “researching” we just mean speaking to the customers, and writing the reviews based on what they say.