Any resources for low cost transportation for my mom?

Because of my work schedule and family responsibilities I am unable to get my mom out as much as I would like to. Scheduling a doctor's appointment is sometimes a challenge. She is legally blind and had heart valve replacement 2 months ago and wants and needs to get out of the house, but can get out, start feeling tired and want to go home. She is alert and walks with a walker that has a seat so she can sit if she gets tired. I need someone affordable to take her out occasionally for an hour or 2 to beauty parlor or sit fit. Most places want $25 /hour or more for this service and that is more than we can afford. We do not live in a metro served area and cabs, Lyft and Uber are not appropriate. Any inexpensive resources anyone knows of?