Laurie: To answer the rest of your question; I find I use the printed book "Best 300" (link in my previous post), almost exclusively while viewing. It not only has the Messiers, but also the Caldwells, as well as many NGC Objects from the Royal Astronomical Society of Canada's Observer's Handbook. Also included are the best NGC's from the Saguaro Astronomy Club.

The book is spiral-bound so that it lays flat, and each page, including the covers are laminated.

I highly recommend this book.

Carol