Thanks for your response Kaylee. The requests I receive are usually for 4 hours or more on either side of the check in and checkout times. It usually happens because guests want to tailor arrival and departure to their fight times.
I dont favour the ' request money ' option you have suggested as it is the subject of negotiation and can get unpleasant. The whole attraction of airbnb to me is the ability to avoid money discussions.
I have suggested that we should have an optional facility to automate the process so that there is minimal or no negotiation about the cost side of things . Guests too should have the option to have the benefit of an automated the request.. for example the host could select as part of the booking process something like :
This host allows early check in / late checkout at the rate of $x per hour/ flat fee
1. Do you seek an early check in ? Yes/ No
2. Press the request early check in button
3. The Host then responds to the request and the guest gets automatically charged if they wish
It should be such that the guest can use this facility at any time during the booking .