As I have mentioned, I'm using colors to identify my tables. I saw this great idea on a facebook page for art teacher, but I don't know who it came from (if it's you, please post). I placed a paint chip in the center of the table and added numbers for each seat at the table. I can see me using this in a lot of ways. Maybe for lining up, jobs, review... I think the numbers in addition to the colors will be a tool I will be able to use often.