But you'll want to use excel 2003. MSFT made a change from 2000 to 2003 that will list all items in your columns or rows without a data field. This allows for you to just
1. put your cursor in your proper list
2. choose pivot table from the data menu
3. choose finish in the wizard (you hardly ever need to change the options.)
4. drag your Context field and then your Next action field (below that) into the Row fields area. This should nicely summarize by context.
The only 'data' option might be to have some time estimates or something.
Certainly a project field would be nice, too, and then you could switch around the fields to get different layouts. You can doubleclick the field names and choose "Subtotals: none" for a cleaner look. When you print, just leave out the data area.