Lists are containers. Tags are dimensions. Use both.
Add a tag — type `#followup` or `@waiting` anywhere in a task title, or click the tag icon on the task card. Tags autocomplete from your existing set.
Filter by tag — click any tag chip in the sidebar or type `tag:followup` in universal search. Works across every list, folder and shared workspace at once.
Auto-tagging — titles containing words like *email, call, review, blocked, waiting* get tagged automatically. Turn it off in Settings → Tags if you'd rather curate manually.
Pro tip: tag by *context* (@home, @office, @errands), not by *project*. Projects are what lists are for.