Noticed and realize it best to not expect a delivery on a Sunday. Apparently the seller of goods contract with the cheapest delivery means possible. The cheap shippers often "hand off" to usps. The cheap shippers get to use the US delivery vehicles and are absolutely thrashing them. Our mail delivery is often late on (especially) mondays and is sometimes by the USPS employee personal vehicle.
Next time I see our "regular" delivery person I'll ask if they have missedpay. I suspect it may be the contract workers that are getting the trickle down.