As SoS said, Target & SB each have their own priorities but you need to work them into your daily routine.
When I opened, I used any gaps between guests to do temps & tomorrow's prep (mixing mochas, prepping tea pitchers, pulling pastries, etc).
The day before you put your order in, print out your order guide & do a sweep to see what you're running low on (remember that it's 5-7 days before your order arrives so adjust quantities accordingly). Check with your team too; they might remember that you're on the last bottle of XX syrup, last sleeve of grande flat lids or there's only a handful of suma shine packets left.