We usually intend to take midday breaks (mainly because DW wants to - I really have no interest in doing that), but we pretty much never do. I can usually talk her out of it. It's not the time at the resort (with pool time normally the designated goal) that bothers me, it's all the extra time for transportation and changing, etc. As stated by others already, by the time you make your way to the bus stop (or boat launch, monorail station etc) from insde the park, wait for mode of transportation to arrive, get back to you resort, walk to your room, change into bathing suits and make your way to the pool...it's likely (unless you are going from MK to the Contemporary or from Epcot to the Beach Club, for example) that 90 minutes - or more - have gone by. Spend 2 hours at the pool and reverse the process back to the park and the desired 2 hour break has cost a total of approx 5 hours. That's way too much park time to forfeit. Best thing to do is to manage a break or two inside the parks. If you want a break...in MK, go to the Hall of Presidents or Carousel of Progress, sit in the AC and do waht many others do - take a nap. In Epcot, do the same in Ellen's Energy Adventure. Combine these with an ice cream break or lunch and the day is much more porductive.