While I agree with the trend here that how you pack is key, I would come at it a different way (I'm the packer for our family). I would not try to do separate packing for each resort. We do laundry and don't pack by day. On our one split stay, I started out planning to pack separately for each resort, but when it came down to it, it just wouldn't work. Here's what did work (on that trip, and on another road trip where we stayed in 3 different hotels):
Pack with plenty of extra space in your luggage, so that it's super-easy to just throw everything back in the suitcase when it's time to move. I have each person have their own bag, or 2 people get either side of a hard-sided suitcase. Either live out of the suitcase, or pack everything in a cube so that it can easily come out of the suitcase and then be put back in (I do the cubes--clothes go into the large cube and are not packed in tight, then when it's time to move, all the clean clothes are still in the cube; zip it up and throw it in the suitcase). Bring an extra bag for moving dirty clothes (one for the whole family). Pack plastic bags for wet swimsuits.
For toiletries, I have done it with one of those hanging rolls that you don't have to unpack, but honestly, a few gallon sized ziploks were easier to deal with. One ziplok per person, or per bathroom, or whatever works.
Everything must be a rolling suitcase so it's easy to move in one trip. Especially at BWV where the walk can be FAR to your room.
Have a great trip!