How much are single stroller rentals at WDW? Last time I went I brought my own stroller, but since my daughter's turning 4 on this trip I thought she might be more comfortable in one of the rentals since they are roomier.
Single strollers at WDW are $8 each per day. You can move from park to park and don't have to pay a second (or third, or...) time, so long as you keep your printed "stroller receipt". When and if you turn the stroller back in as you leave the park, you will receive a $1 "refund" (in the form of a Disney dollar).