Looking for a time logger, any ideas?

[Ati]

Hi, I am looking for a device which I've either just invented (it wouldn't be hard to build) or it exists and I just don't know about it. Maybe you do, if so can you clue me in?

This thing (in my imagination) is pretty small, easy to carry around. It has a button you push when you want to start the timer and push again when you want to end the time measured.

It's something like a lap timer on a wrist watch but with more laps.

Now it also has, say 10 or more "threads" or, anyway, symbols you push before you push the timer itself. Say, like A, B, C, D, E, F, G etc. So now you have that many parallel runs of time that you can measure..

One might either, on a spread sheet or just a word document, label A as one thing, B as another etc. or maybe this thing actually can communicate with your computer to do that for you. That part doesn't matter at this point.

Does this make sense?

What I want to do for say 30 days, is log my time doing 4 different general categories of things I do at work, 2 general categories of things I do for household maintenance, 4 different categories of things I do in music and so on.

The thing itself needs to be small so easy to carry around, maybe even pin it to my shirt or something. So I wouldn't want much else on it besides about 12 to 16 different parallel timers, each of which with the capability of giving me a total at the end of the day.

Ideas?

Thanks!

If this thing doesn't exist and anyone wants to invent it, well the idea is yours, copyright free! Just please do it soon so that I can use it, I'll buy your first one!

Ati