The main reason I use tags is to separate normal tasks from special tasks. Special tasks in this case means, for example, a task that go together for shopping, tasks that go together because of certain time constraints, or tasks that imply some sort of delegation. The problem I am having with the filter is that i have only been able to understand to use the filtering when looking for a specific tag. What I am looking for is a way to search all tasks EXCEPT certain tags. I find it inconvenient and inefficient to add a 'normal' tag to every task I create. I don't know if I haven't figured it out because it took me a couple months just to figure out how to use the 'Filter' folder.