1. When singing hymns and FWS songs, have the congregation do a group physical motion to a verse, or maybe just to a phrase of the song. Physical involvement activates a part of the brain that can make the worshipper more engaged and make the experience more memorable. We took one of the songs we were learning and put one hand motion to the key word in each verse, a motion for the word Jesus, Worthy, and Holy.
2. It was suggested that one of the songs were learned would be good for singing while bringing in the Communion elements. Processing into the sanctuary and carrying the elements to the altar as part of the service - doing something that might be considered more "high church" would bring the air of mystery and holiness back to the sacrament. We could use dancers carrying colored cloth or streamers to accompany the bearers of the elements in a stately walk - taking advantage of the colors and symbols of the church to give a more meaningful message.
3. When using candles for specific functions, like the Advent Wreath, if you've found large decorative candles that you really like, burn them down just far enough to leave a little indentation at the top, just large enough for a little tea light to set down into the top of the used candle without being seen. Then light the tea lights set in the top of the larger candle instead of using up your expensive decorative candles. Tea lights are cheap and some will burn all Advent.
4. To emphasize a phrase or verse of a song, have the organ drop out for that moment. The congregation singing the words becomes the focus.
5. Varying the speed of a worship chorus or hymn can make a chorus sound like a hymn, or a hymn sound like a worship chorus - reinforcing the message that it is all about the worship of God, not the style.