Create a url which lets colleagues and students send you a screencast video when they are having a problem (hopefully just IT issues, therapy is not my job!) I love this resource, although it keeps me busy.
http://ictmagic.wikispaces.com/ICT+&+Web+Tools
An amazing tool for sharing what's on your screen live over the Internet. Just share a link to see.
You can even take control of the remote computer to fix any problems (user has to agree to this).
http://ictmagic.wikispaces.com/ICT+%26+Web+Tools