As mentioned: I love Excel.

Here are some of the things I’ve used it for:

Doctor Who British Rating Comparison 2005-2009

Ratings for Doctor Who over 5 seasons (Click for full size). ©2010 Apolo Productions

The web analytic monitoring of hourly hits on my wife‘s popular art: “Not Yours”

Analysis of Web Hits for "Not Yours" after it's announcement. ©2010 Apolo Productions. Click for a larger view