Time lapse photography is generally the domain of people with pricey DSLR cameras and fancy time lapse software and modules. Hack a point and shoot camera into a time lapse taking powerhouse with this guide.
Normally you don't think of point and shoot cameras when you think of time lapse photography. They lack the proper input ports and settings for effective time lapse photography and it's a task that manufacturers haven't even considered them for.
Instructables user andyk75 wanted to dabble with time lapse photopgraphy but he didn't have expensive gear to do so. He ended up taking a cheap digital camera (a Rollei Digicam that cost him around $US60) and building a control module for it from basic electronics parts. His module allows him to control the camera by turning it on or off, adjust the interval for the time lapse, and even sports his humorously named "naked button" so on the off chance you see something really worth capturing during the course of a time lapse you can click the button and add it to the time lapse series.
Check out the full guide at the link below to see how he wires his module into the camera and mounts in on his window to capture the outside world.