Er... whenever I can. I guess maybe ten... I read walking to classes, during lunch break, in the mornings, in the afternoon/evening... well maybe more than ten. Probably thirteen. It's really my only source of entertainment, as I don't watch television.
As of now I am finishing the last of Death Note by Tsugumi Ohba, I'm on chapter 91 out of 108 on onemanga.com... took 5 days to get here amidst other readings and life. I'm kind of proud of myself.