You need to get a ticket as you enter.
The numbered ticket system should always be used.
Some items sell out towards the end of the day.
I have been using it now for 3 months and it saves me so much research. Reduces the need to call and double check every time.
How did I not know these places existed?! Atly's scoring is a lifesaver, now I can finally find THE spot without wasting time Googling my life away.