When I make cookies, I am just to busy (read - lazy) to do all the individual cookies so I adapt all recipes to be bar cookies. The most popular cookie I make is a soft peanut butter bar, or the chocolate chip bars. Now my secret- I buy 2 mixes that come in envelopes, and follow the recipe except I add an extra egg to the mix. Press the dough into a jelly roll pan, and bake at 25 degrees cooler than directed, and bake for about 20 minutes. Allow to cool 10 minutes before cutting and removing from the pan. Yum!