I am in the same situation. This is how I setup my OF.

When I have a few hours to work on/test a specific project I go directly to that project context under work. I also have project contexts nested under phone and people.

Work
-----urbanrenters.ca
-----adeepbite.com
-----ohters projects you have

Phone
------urbanrenters.ca
------adeepbite.com

People
------Mom
------Joe
--------urbanrenters.ca