I don’t eat eggs all that often and I find that I make a mess of cracking them when I do. Apparently it is better to crack on the counter than on the side of the bowl, as the video linked below clearly demonstrates.
HANDY HINT: If you do mis-crack your egg, a piece of eggshell makes a dandy scoop to retrieve errant flecks of shell from the egg white. It seems to work by some magic force of attraction.
Cooks Illustrated Video: The Right Way to Crack an Egg via Lifehacker