I know we've only just finished with Christmas, but Lent starts on 22 Febuary this year, and if you want to make the most of this rich season ...
In the mingling before the service, send someone out to greet as many people as possible. Let this person put on some – expensive is best! – perfume on their hands.
Later on in the service, ask people to smell their hands – they might be surprised to find them smelling of unknown perfume! Can be used to talk about the contagiousness of the fragrance of Jesus, evangelism etc.