We mostly have our dates set for a Nov. trip, but some of it will depend on flights. We are hoping to find a flight Wed night after work/school, but if the timing doesn't work out, we will have to catch a Thurs morning flight instead. Flights won't be available for booking for quite some time, but I'm wanting to lock in our lodging plans as soon as we can. If I book Wed night into our resort package, but then can't get in until Thurs, how hard is it to make that change to our reservation? I don't want to have to pay for a night that we don't use!