Not the date of the event. Pick a date at least 1 day before. As I schedule multiple pickups, I cannot guarantee that you will have the cookies at a precise time, so it is best to select at lest 1 day earlier.
If your date is not available, pick the nearest date before it. Cookies are good for 3 weeks because they are individually sealed, so it will be fine to get them a little earlier.
Orders placed with less than 3 weeks' notice will incur a 20% "miracle" charge if there is availability.