Posting this because I haven't thought to do this before.
I just created a trigger using booking criteria of 7 or more night stay, and using it to send an email to my cleaner with a request to plan for stocking extra consumables (toilet paper, paper towels, dishwasher pucks, etc.)
This saves me having to notice/remember to tell the cleaner manually.
The only difficulty is that this kind of message would ideally be sent on the day before departure of the booking previous to a long booking. , because that's when the cleaners will be at the property. If there were a gap of multiple days ahead of a week long booking the reminder could be too late. Triggers don't currently allow something like "1 day before departure of the booking previous to this one" but in this case it would be helpful.
Yep, that's a great trigger concept!
We don't currently have a way to target other bookings in a trigger, but it's something to think about for sure.