This past spring, my DS4 and I were supposed to be joined by a good friend in a 1BR at SSR. About 30 days prior, he cancelled due a job obligations. I was disappointed, especially since I had never traveled alone with my DS4 (with ADHD). Luckily, we had a 1BR, so him cancelling did not affect our room choice -- if I had originally planned the trip for just my son and I, I would have booked a 1BR anyway.
At the time, 3 of my adult (college-age) niece and nephews expressed an interest in joining us, but we were scheduled to go the week after their spring break, so it didn't work for them. So, we planned for them to come in spring 2010. I booked the 2BR for next March and asked them for a commitment. They appeared to be very non-commital, so I gave them a drop-dead date to let me know (which was a couple of weeks before the 7 month mark) and, as expected, they all backed out. I wasn't angry with them -- they had very good reasons for backing out -- so I was happy that I had given them the deadline and they honored it.
Turns out my parents decided to join us, so I didn't have to change the room size anyway. I also invited my 18yo niece and her BFF. I have told everyone that DS and I will be going to the parks in the mornings and expect to be back in the early afternoon for lunch, planning to spend the rest of the day at the pool. My parents are fine with this -- my mother is handicapped and isn't interested in going to the parks at all (was just there in 2008). My dad will probably join us for a few days. I fully expect my niece and her BFF to be on the opposite schedule -- sleeping until noon, pool in the afternoon, and parks at night (taking advantage of EMH). We will likely only see them during pool time. We are cooking all meals in the room. Other than that, we have no solid plans at all.
I know that my parents won't cancel on me. My niece and BFF have paid for their non-refundable plane tickets, so they won't cancel. I'm looking forward to a nice trip.
Having said all of that (sorry so long), there are some relatives that I will NEVER invite. My sister is one of them. Not because I worry that she will back out -- it's because she will make me miserable the entire time she is there. She causes a problem at almost every family gathering -- even a simple dinner. She completely ruined our 2008 Disney trip (pre-
DVC). It's just not worth it. We all have someone like her in our families -- we just have to recognize that they are not the people we should vacation with.