In the October 2010 issue of Alfred Hitchcock Mystery Magazine, its editor, Linda Landrigan, mentioned that approximately half the issue is comprised of series installments, while standalone stories make up the other half. She discussed some of the pros and cons of each type, which then served to arouse my curiosity.
To date, I've sold twenty-five stories to AHMM and each of them, except for the very first one, has been an installment in one of my four mystery series. It seems that when I find myself facing that vast, empty page on my computer screen, it is easier for me to begin a new story with characters I already know. These ongoing protagonists, and some recurring antagonists, are almost fully formed in my mind, which means they are ready to tell me how they will normally act at most given times, and sometimes, in advance, how they will react to a new set of circumstances in whatever is about to become my latest story. This works well for me, up to a point.
This cheat sheet also includes some physical attributes and habit tags which allows the Series Reader to say to himself: "Oh yeah, I remember this guy." And, in that one attribute or tag, the Series Reader gets a more complete image of my continued character as if a small compressed file were suddenly unzipped. As for the First Time Reader, he gets his own mental picture of that same character, plus starts building a fuller image to be unzipped whenever he reads the next installment in the series.
To keep my writing enthusiasm at a higher pitch, I try to have three stories going at the same time, in different series. That way, if I hit a speed bump in one story, or the characters feel like they're dragging, then I can jump to one of the other stories where everything feels fresher and more exciting, and I can keep on writing instead of puzzling over what to do next in a story that's temporarily stuck. My unconscious mind can work on that stuck part.
Eventually, I do get weary of all these same characters, in which case I write something completely new. Yep, this new story starts out as a standalone. But guess what? If it sells, then it runs the risk of being turned into a series, because I already know these characters and supposedly how they will act in their normal life and how they will react when their life gets abnormal. Time for another cheat sheet.
No doubt, you have your own opinions on reading or writing strings and/or singles. So, am I missing anything here? As the English comedian Benny Hill used to say in one of his skits on TV, "Always learning, always learning."