We have a fair amount of new attenders, and a core of long time attenders. We start our services on time, but many often linger in the lobby visiting with friends, getting a cup of coffee, etc.
Some things we are doing to remedy this include ringing a bell a couple minutes before the service starts, closing one of of the doors at each entrance when the service starts, etc. We are also considering a verbal announcement in the lobby, possibly closing the cafe 5 minutes before the service, and having a countdown timer on the screen above the entrance to the worship area.
Does your church do anything like this? Other thoughts?