Q. Does The UPS Store have the ability to send letters and packages out for next day delivery?

Yes.  We can guarantee UPS next day shipments for delivery Monday through Friday and in many cases on Saturday. Overnight deliveries through UPS must have a physical street address to be eligible to travel within the UPS system. For addresses without a physical address (i.e. a post office box number) we would utilize the Postal Service. Source: Ship UPS Store, Contact: 717-477-0877, store6335@theupsstore.com