I turned a laptop and a webcam into a CCTV camera for my home
Sometimes you just need to know what's going on.

It's not often that I go away from home for extended periods, but one thing that always worries me is keeping an eye on the property. I've got a VPS set up so that I can connect to my NAS services when I do, and some cameras set up outside, but I didn't think I needed one for inside until it was too late to get one installed.