I have appreciated the ease with which they can used. And because they are laminated, they are durable and are protected from finger smudges or sticky spots that we may have missed on the dining room table! I also like the contrasting colors in which they are printed as it makes the information easier to read and follow.
They can be purchased at http://www.clp.org/ These resources are also available for different subjects and CLP offers many other helpful items.
Have a blessed day~