How busy is it? How hard is it to get the free items? Do you have to be there earlier than opening time? I know it depends on where you live but I thought maybe someone would be able to help me. The reason I ask is because Office Depot, Staples, and Big Lots all have their Teacher Appreciation on the same day starting at the same time and I don't know which one I should focus on more. Anyone been to them? I heard Big Lots isn't that great but is Office Depot or Staples more worth going to?