Hi Valerie,
My mom just completed rad and chemo tx's a few wks ago. She did terrific the first few weeks and then about the 4th week in she started to get very tired. We took her to all of her tx's because she needed to take ativan prior to rads. She is extremely claustrophic and couldn't bear being clamped down. We are also close to an hour from the CCC we use. It was very taxing. I think if she could have driven herself in the beginning she might have felt a little more independent. That was one of the hardest things for her, having to give up part of her independence. She thought she drove fine a few hours later, but honestly, she was still quit high from the drug. From a caregivers perspective--there is going to be plenty of times where you will be needed. I guess that is a decision you need to make, one that you are comfortable with. Good luck, I know it's not easy deciding what to do...or what not to do.
I know, as I am still going through all this with the next step coming soon.