I assigned a manager to each bin to ensure that each student in their row, put their supplies back in the bin. I attached stickable dry erase sheets to each bin so the managers can write their names on them. Because I have three classes rotate through my room, this is very helpful so we know who the managers are in each class.
The mangers get the bins whenever we do anything involving colors, scissors, or glue (which is pretty much everyday). I have already noticed a huge improvement and hopefully this year, I will end the year with more than six scissors. :)