There is also this little device if you only want to count lengths, but maybe the display is too small: http://www.sportcount.com/featureChart.php
A psychological disorder is: "Any personal construction which is used repeatedly in spite of consistent invalidation."
~ George Kelly
"The water is your friend.....you don't have to fight with water, just share the same spirit as the water, and it will help you move."
~ Aleksandr Popov