This year I'm going to try a great technique I heard of from a fellow teacher. At the end of the class, or during class work, students working hard, staying on task, following directions, etc., will receive a Good Work Coupon. They are to keep these in a safe place because at the end of the month or 6 weeks grading period, we will count them up. The student who has the most coupons or has gathered at least "X" number of coupons (you set the number) can choose from the gift box. Micheal's craft store always has $1 gifts at the front of the store. Pads of paper, stationary, bracelets, pencils. I'll also put all the coupons into a basket and draw out a couple names. This works well and motivates those students who are often overlooked by teachers dealing with discipline problems.