Over the last couple of months, I've had to decline reservation requests because I wouldn't be home at the proposed arrival date. The room was vacant on the day, but I just couldn't do the check in. This is kinda bad for guest and host alike.
I think this would be easily solved, by adding a field in the calender. Not only would you state whether the room is available, but also whether the specific day is check-in-able. So for instance, I am away on tuesday. I would welcome someone arriving on sunday or monday, staying until friday, but anyone wanting to arrive on tuesday, I'd have to decline.
I tried to figure out how to submit this suggestion to the devs, but... I cannot figure out how. Who can tell?