I am a project manager building a residential building. One of my tasks is
to find out the best way to supply the kitchen cabinets. This leads to a
hierarchy of tasks such as :
1. Find best way to provide kitchen cabinets
1.1 Find out if going to China is a viable option
1.1.1 Contact suppliers and get references from N.A. customers
1.1.2 Contact other contractors who have done business in China
1.1.2.1 Call Joe Contractor and ask him if has done
business in China
1.2 Optimize design of cabinets
1.2.1 Change the configuration of the doors
1.2.1.1 Contact the architect to change the confiiguration of
the doors

I have experimented with different views and added a couple of custom fields
but I haven't found the right way to do it yet. I am modeling my to-do list
on a Microsoft book where you boil all your "to-do's" down to Next
Significant Actions, which are then categorized by where and how they take
place (phone, office, meeting). So the use of categories is already taken up
by this methodology.

Any help much, much appreciated!!!!