I want all my tasks to be tagged "work' or 'personal'. Every so often I forget to tag this way. I cant see how I can search for tasks that do NOT have either 'work' or 'personal'. I have worked out how to search for no tag, but this doesn't really help if i have added a tag, but not one of these two tags. If I could do all this I would have an easy way of seeing tasks I have accidentally forgot to add one of these tags. Thank you