For competitions, where timing (and ending on the beat) is important, I was taught some *great* ideas by a couple of the lovely teachers here, Brian and Christine.
They taught me some "filler" moves that add style but aren't a "stop" in the dance. For example, the "Ginger Lean": just a First Move entry, but the man's R hand goes to the lady's waist to stop her stepping back; then the man broadens his stance with the left foot, and leans left, keeping his body straight with his right leg. The effect is a lunge to the left. The lady keeps her body straight, and can extend her arm above her head for style. She can also bring her outer knee up, keeping her foot pointed, this looks very elegant.
If the music is working to a finish, but you're not sure of the timing, this is a really easy move to get into quickly; you do the Ginger Lean, slowly and dramatically... then on the final beat, the man can (for example) straighten his left leg from the lunge and fast dip the lady directly from the lean, for a perfect finish.
A slightly tricker version would be to get upright slightly sooner, and do a Glen's Return straight into a dip or drop.
Live passionately,