I was browsing through Scientific American/April 2005 and found a fun tidbit.
Researchers discovered that people can't gauge the future demands on their time as well as they can thier money. Without knowing about upcoming specific tasks, people act as if they'll have more time tomorrow. They seem to forget that new things are going to come up that will put demands on their time. When tomorrow arrives, people discover they are too busy to do what they thought they'd be able to do.
The findings were published in Journal of Experimental Psychology.
This is no news to any of us, huh?