I'm not sure which is worse: the moment of realizing that I don't know where my debit card is, or having the moment occur after spending an hour dragging a toddler around Costco filling my cart. But even worse than both of those is the wretched feeling of leaving behind the string cheese that I'd been assuring her she could have in the car "as soon as I've paid for them."
All that work, all those bribes of cheese, for nothing