Lou,
At work and in my personal listings, under 9.99 is a waste. Group into a larger lot if possible. Exceptions made for items small and very easy to pack. End in the evening, Sat -Wed. I like Tuesdays for tools, Sundays for collectibles. You could group by model or brand to increase final value. Sharp pics, and snappy text, stating specs 3 times. Once in title, twice in body. State you shipping and handling in the auction, and in the ebay form. (it saves on answering questions later) Best o luck.