See what’s happening at home when you’re not there, from a security perspective. If you’re looking into doing this, check out the articles I’ve done. They won’t make you a genius but will hopefully help get you started. There’s a couple of low cost options using your existing USB camera and one about using an IP Camera or network camera or Wireless (WiFi) camera. I’ve put links to the glossary which explains most of the bits I think you will want to know.