When I print, I like to have enough copies for disaster in the dryer, toner catastrophy and matting malady- I am also inclined to print several sizes - one group for the wall, one group for one portfolio ... etc. I prefer to let someone chose the image they want for sale. What I find cool is not usually what folks want to pay me for. Sold prints are almost always a separate session. Again - a few extras to choose from - lighter darker disaster ... what ever.