How do you know it will be back later tonight?
I wasn't paying attention to the time while adding things to my cart. I went to put the code in at checkout and it had expired. I looked at the time and it said 12:01. Unreal, I shopped too long and missed it by 2 minutes.
according to the OP
Valid November 1st
10am to 1pm
9pm to 12 am
BOTH ARE EDT
..on the hunt for the next Staples score..