We have Sunday delivery
What gets me since I see UPS "negotiated" pricing for my company, I can ship a 1 # box 1 mile down the street. I can ship a 5# box to California.....same price, different weights and box sizes. I guess it's a flat rate thing for us up to a certain poundage no matter where in the US it goes.
Amazon prime ships 7 days a week.I really don't like someone working on Sunday to deliver an item that I will not be using for months.