Well, let's face it, it gives us something to
do whilst we wait, wait, wait!
Sometimes, I'm eager to get to sleep so that I can wake in the morning and temp to get a better idea of 'what's happeneing'. Kinda like when I was a kid waiting for christmas - the earlier you go to sleep the quicker it gets here, right?!
And then, of course, we can stare. And obsess. And compare.
That's gotta be WAY more exciting than just waiting on af/bfp each month(which is always an unknown quantity when you can't tell for sure by looking at a chart when you O'd). So,
hurrah!! for the humble chart in all it's glory!