Need a new way to get the class to arrive on time and to return to class promptly after a break or lunch? Try an "on time" prize drawing.
At a conference this week, there were "on time" prizes drawn at the start of the day and at the announced time after the breaks. The prize drawings start promptly at the program's start time, and includes 3-4 gift cards.
Each member of the host committee has their own organizaiton donate prizes, or solicits gift cards in the $25-$50 range. At the drawing before I spoke were a $25 gift card to Publix, Applebees and Amazon; and $50 in cash.
I may try it with an "early bird" drawing to reward those who arrive at least 5 minutes before class ...