Whenever I look at the mail bins downstairs, I think of the that little song...
Anyway, the mail is pouring in and that's great. Our mail services staff is busily opening bin after bin of letters and passing them along to the processing staff to be checked in and then filed. However, something else is pouring in: FedEx and UPS packages from students living in the US. Now, it's perfectly normal for international students to send applications via one of those delivery services (DHL seems most popular), but there really isn't any need for students living in the United States to send their applications or supporting documents by special courier.
Pass the word around. Don't spend $20 (or whatever it is) to mail anything by FedEx or UPS or DHL if you live in the US. There's plenty of time for documents to get here via the US Postal Service.