The great thing about having a computer is that you have so many tools available to you. While some you may not know how to take advantage of, (hacking into someone’s computer, creating botnets, etc), there are some you can. How about using your computer’s webcam to monitor what is happening in your house, perhaps making sure your dog walker is doing their job? Ordinary people might just take a regular old video, use Skype or something else. But a much easier option is to use Vitamin D, a program that identifies moving subjects to create a highlight video of all the activity occuring in your home.