Welcome Home Ursula !
If you are located in the U.S., you might want to check your local
Target Store, if they have a Photo Center. My local store processes
35mm 36 exposures, and also provides an Index Print, and a CD, for $2.99.
I'm not sure if they would be an additional charge for a disposable camera.
And possibly ask the manager if the could offer a discount for the service.
Enjoy The Weekend !