[whpalmer4]

The notion of context is just a tool to subdivide a big list of tasks into smaller ones, in order to make it easier to choose the next task to do. The notion of physical context as espoused by David Allen is one obvious way to use it, but it's not the only way!

Take a step back from your tasks and imagine that you had to divide up the list to delegate it all to a bunch of co-workers for the next few months. Is there a logical way to divide up the list? That might be a good starting point for a set of contexts.