[QUOTE=little5guy]First, Would it be folly to apply thin strips of duct tape to the inside of the tire? One or two strips would not be too thick to mess anything up I would think. The benefit, of course, would be that those little stones, and pieces of glass and metal would have more trouble poking into my tube.[QUOTE]
Bad idea on many levels.
Your tube is coated with talc powder to allow it to slide around inside the tire. DT will stop that.
The inside of the tire should be smooth, dry and easy to inspect for debris. DT will prevent that.
When you get another flat you will have a fun time removing the tube from the tire and an even greater time trying to patch a tube that is covered with DT glue.
Enjoy