Some more little bits of writing advice I’ve come across here and there, posted for my reference, as much as yours.
T. Gene Davis offers advice, as well as publishing family-friendly genre fiction from themselves and others, on their blog. In this post here, they detail ways to put your submissions above the competition, and 2 of the 3 are interesting and practical suggestions – avoid using narrative summaries, and avoid those evil, dastardly passive sentences (which they expand on here).
And speaking of passive sentences, if you already know they’re bad, but struggle with locating them in your work, this post here could help you out.