Bike and Turbo Cleaning

When riding outside I clean my bike after every use (I can do the GCN 5 min bike clean in around 12 mins now).
However, when it’s up on the turbo I don’t think to clean it. How often do you clean your drivechain when you are not cycling outside? What is a good way to clean the cassette when it’s on the turbo?

Bob

The chain gets a hot wax bath every few hundred miles, for lubrication.

The cassette does not get dirty.