Hi Tonya,
Thank you for your super sweet words! We love assisting guests like you during your planning so we're glad you're hEAR!
I wouldn't leave any valuables (including your camera) in your stroller. There are a few attractions, not many, that have a little pocket to store items in (i.e. Rock 'n' Roller Coaster) but I wouldn't store my camera in there because it does loops & can fall out. I carry a small camera and usually carry it in a cushioned case that offers some protection. I keep that over one shoulder and under the opposite arm to keep it secured. This has usually works pretty well for me and leaves me handsfree. On rides like Splash Mountain and Kali River Rapids, I leave my camera in a locker or put it in a Ziploc bag tightly sealed so that it won't get wet.
There are lockers for rent at all of the theme parks, water parks and Downtown Disney but they aren't available at each attraction. Click
here for a list of locker locations. Click
here for a list of rental fees (keep in mind that these are always subject to change without notice).
Wishing you minnie magical memories :-) Allison