If I rent a stroller at one park (say MK) in the morning then head over to EPCOT in the evening, do I have to pay another stroller rental? Or, do they give you some sort of voucher ticket if you need another stroller that same day in the parks? What are the WDW strollers like - last time we took our own.
No, you do not have to pay again, but get a receipt. You can then show it at the next park's stroller station and they will help you. Only one word of caution - if they run out then they are out. I haven't ever seen this happen, but have heard that is the case. It could be a challenge if you are heading into a park on a crowded day... I found pictures of all the park' strollers on Deb Wills site, www.wdwig.com