I was actually just thinking about this. I normally stay up well past midnight, so I can usually get two tasks out of the way before going to bed, the third one goes while I'm sleeping, then I finish the fourth one during the day. I really wonder how people who have a normal sleep/work schedule do it though. Like if you go to bed at 10 PM, you can't get anything done until say 6-8 AM the next day, then that only leaves you 16-18 hours to get them done instead of 24. As it is, I've missed the fourth prize at least twice because they throw that 6 hour task in.