Sure. Here are mine (for todolists):
@home
@internet
@boss (a waiting for/agenda category that I can check more often than I check @waitingfor)
@out&about (the king of all categories)
@parents (agenda)
@someday maybe
@waiting for
@work
@done
and, DA would just not approve:
@today
By way of explanation, it makes little sense for me to have separate @work, @phone and @computer lists, since all are things I do while parked in my chair, and my work just doesn't lend itself to making all my calls at one time.
The @today list is something I developed because I have more than one screen of things on my @work list. Each morning I try to pull off the most critical things from @work and move them to @today, then leave this Palm desktop screen up all day so I can focus on those few things without being distracted by the other stuff on the list.
I like someday/maybe as a category in todos rather than as a memo because then it is easy to bounce things from @home (for example) to @someday/maybe and back as I decide whether or not I really need to do them anytime in the near future.
I also am interested in hearing other people's categories.
Taxgeek