No catheters for me either in the SRT simulation setup.
Just some xrays and tatoos...
I was 4 1/2 hrs from the treatment location, so I stayed with friends during the treatment week and drove home 3-4 times on the weekends. I was worried and thought 7 weeks was a long time going in, but the time actually was over before I knew it... and side effects very minimal...
Best wishes on your treatment...
pasayten