Here now, a quick script to count event occurrences* in real time, without resorting to archaic tally marks.
* What, you ask? Oh, anything, I suppose. Speech disfluencies, annoying sounds, the number of times I think about Dorito shell tacos every day, etc.
http://jsfiddle.net/rocktronica/seHze/
https://gist.github.com/2156283