hi. i am a semi lurker for a while now. Tentatively planning our first trip in March of this year. (BTW since it is tentative, less crowded for Spring break or Presidents weekend,? but we would take a week?), We are staying offsite w/ a rental car. 4 days in the parks. Ok that said ,I have 3 kids 14, 7, and 9. my 9 YO DS is small for his age,at around 40 lbs. and my 7YO DD,is about the same.i really think we will need a stroller for them at some point from all of the walking. I think if they are tired they WILL ride in it. We can dump it in a locker, or leave it in the car till needed. not sure about the car tho. how long does it take to go out to the car and back in? Should we get a cheapie umbrella stroller, , or invest in a used bigger nicer one? Drag it on the plane with us?w much does it cost to rent one in the parks? are they readily available, in all of the parks? I would hate to decide that they needed to ride and rest, and not be able to find one.Do they sell out? i expect we would need it in the evening hours or maybe during the hot part of the day. we are hard- core- if- we- paid -that- much- to- get- in- here- we -will -stay- from open- till- close- type of people,if that means anything .thanks for any insights.