I detest "joys and concerns", chalice lightings, "Spirit of Life" -- indeed, nearly all the customary trappings of mainline Unitarian Universalist worship, but I would rather they be done well than done badly. (True too of announcements in any setting.)
That's why I give props to Unitarian Universalist Best Practices: Chalices, Joys & Concerns, and other Sunday Service components, a new site written by Connie Barlow. She and her husband are the people who bring you The Great Story, a naturalistic metanarrative program. Since her observations are based on presentation in a hundred and fifty UU congregations, some of you have surely seen them and they ought to have the raw data to make observations about liturgical practice. (Do comment.) Again, not my thing but the fact that someone is thinking in big terms without the need to water down their own core orientation is noteworthy and should inspire those who work from other starting points.