Two weeks ago, I shared my "secret person" thing that I'm doing with the prize line. Right now, my prizes are down to school supply items and baggies of suckers. But two of the most popular items don't cost me a cent!
Specifically, coupons for trading desks for a day and using a special chair.
The other coupon is for a "special" chair. A few years ago, all of the rolling chairs in the computer lab were replaced, and I snagged one or two to use in my classroom. The intent was to use them for when I sat at the overhead or guided reading table or whatever because, hey, they were padded. Turns out, kids don't like sitting in hard chairs all day either. So earning a coupon to use a more comfortable chair for a day is pretty motivating, too!