Just like the Undated Filter it would be great to have an Untagged filter. My understanding is that right now, to get that result, I would need to filter and exclude each of the tags I use. Needless to say if you use more than a handful of tags, having an Untagged filter would be much easier.
Thanks for the feedback, @spencerogden.
I'll keep it on the list to consider.
Maybe I'm missing something, but can't you just create an "Untagged" list with filter type "Tag" and in the Exclude entry, put # ? You shouldn't have to add all your tags, just the # symbol.
Yes, you are right. I didn't quiet wrap my head around the fact that the Tag filter is basically a simple text search, there is no special tag magic, and it can be used for search for any arbitrary string.
I'm using it now for two things:
Tag: Exclude: "#" - All untagged items
Tag: Include: "Call " - All items with the word "Call" in them