Imagine if you could book a courier for a specific 1 hour time window.....rather than having to make sure you're home all day etc.......no more have to effectively DDOS their website with refreshes to see that they delivered it without bothering to ring the bell so you at least know it's in the letter box (if you're lucky), tossed over the front gate, or my favourite, left on top of the front gate pillar for anyone who walks past to take.
I daydream about setting up such a company but unfortunately my tech skills don't translate to setting up a courier business.