Courier companies have been optimised around a B2B experience -- where it doesn't matter what time it's delivered, because there is always someone at the front desk.

Drives me insane too. A failed delivery must have a reasonable cost in terms of time/money/capacity. I'm surprised there hasn't been an economic driver to sort this out.

Someone like Amazon needs to get in on the game - either with their own service, or partner with someone. If any company is suffering because of a crappy courier experience, it'll be them.