My frequent OCDs include:
1. Leaving the cooker on 2. Leaving the taps on 3. Leaving a window open or a door unlocked 4. Some kind of electrical fault burning down the house 5. Causing harm to other people, particularly when driving 6. Searching the Internet for illegal content 7. Doing something awful/unforgivable and being criminally prosecuted or losing all my savings in some kind of civil case
I never usually experience them at the same time. They come and go one at a time and some I have learned to manage better than others.