Something I came across that is perfect for the "junk drawer".

I'll confess, I'm a much better juggler than I am a mathematician. But I'm one hell of a juggler. I was never patient enough for five balls more than a couple o' passes, but I can do some awesome things with three! I can make 'em blur, really. I've thought about juggling notation, but never realized how far it had gotten.

I've just had my first reading...makes sense...but I've got to really study this to see if I can use it. Pretty cool, though.

Found it after reading about the article in the print version ofNew Scientist.

And if you are wondering, yes, indeed, I can juggle rock hammers.