What is your daily drawing routine?

For those who are seriously into drawing and want to get better - I presume you guys draw daily, everyday perhaps?

If so... what is your drawing routine for improvement?

I know Xia said three hours a day ...and a life drawing session or two...

Recently, I've been doing random sketches and using drawings and references from other books...

I've been having fun...

But now I'm stuck - what do I draw, next - what should I be drawing? How long? I don't want to start a big piece of art work - but rather something small but effective.

I didn't want to post without a picture so...

Here's a picture I did while sitting in bed, 30 minutes!

I don't regret

I know that i could do it better  but... i will try next time :P

Thanks for comments, CU!