You don't shed spores out of your skin, but when you flush the toilet, you can get them going through the air, so close the lid when you flush.
As for all these precautions, I have to say that when I had full blown c diff, I did use bleach in the toilet, but not in the shower. I also used it to clean the bathroom, but once the D was under control, I didn't use it anymore.
I never washed my clothes separately and I never washed the bedsheets every other day. I washed them once a week. My husband has used my toilet since the very beginning of this, through relapse after relapse, shared my bed and bedsheets and never got c diff. He was even my donor for my first stool transfer. I had him test as recently as about 4 months ago in case I needed him for a donor again and he was fine. He got the intestinal flu that everyone else that I knew had for 4 - 5 days around here and he had it for only one day.
I used the bathroom at work in my dept. office that I share with 6 others and no one got sick with c diff. No one had even heard of c diff.
I think it is good to use caution, maybe I should have used more, but don't get paranoid about it either. Do what you can within reason. Amy posted the link to the site where you can get those germicidal bleach wipes. You can get them at Staples around here too. Those are probably good for wiping down the toilet seat and so on.