You asked: "I have just received my book port and am very happy to have got it. I am hoping to learn a lot of things from u all.can any1tell me whether there r any do's and dont's that we have to take care of when using the book port and any thing that is not listed in the manual?: I've owned the old RoadRunner, Book Courier, and Book Port. If you are like me, you'll carry your Book Port everywhere. One of my biggest concerns is keeping it clean and free of my guide dog's flying fur. I've found that Ziploc snack bags(I use the generic variety) , which are about half the depth of a sandwich bag, can accomodate a Book Port if you gently stretch them a bit. I use a paper hole punch to put a small hole on the top edge of the baggie so that the ear phone jack can be accessed. And, my Book Port is in that handy weather resistant casing 100% of the time. I hike, travel, and feel free to go anywhere with my Book Port. And I can even use the Braille keyboard without difficulty through the plastic. My old Book Courier used to get dog hair and grit in the unit, but I do not have that problem any more. I've also found that a neatly folded baggie in my wallet, not the Ziploc kind, is handy if you suddenly find yourself walking in the rain, because you can whip it out and be sure to keep your Book Port dry. Finally, I tend to use the single ear jacks from Radio Shack as i can listen to books as I roam and still have an ear available to track my surroundings.