Unfortunately, even if you're the most eagle-eyes person around, you can't be everywhere watching everything at once. It's just not physically possible. But rest easy, there's an easier way to monitor everything.
A webcam is a great tool for monitoring an area. Perhaps things have been disappearing from a storeroom at work. Maybe someone's been rummaging through your mailbox. You can have your webcam "watch" the area of concern for you.
On the other hand, setting your webcam to record video continuously doesn't make sense. It would take up a huge amount of hard drive space and reviewing it would be a nightmare.
A better solution is to use motion detection so your webcam records only when it senses movement. But it would really expensive to rig up something like that, right? Not if you have this free program.