As a volunteer, I spend most of my service time offering respite to caregivers who need to leave their charges to go out into the normal world for regular chores - buying food or medications or just taking a break from their 24-hour-a-day duties.But there's another side that seems less demanding, easier than sitting with an Alzheimer's client for several hours. And that's simple transportation for elderly who have no transportation on hand, no car, no friend to drive, no nearby JAC bus stop.I am less often asked to be a driver is such cases, but I have learned the …