How to exclude the C:\Users\username\AppData folder, and others

I would like the ability to create a custom backup set to backup all files in:

c:\users\username

But I want it to exclude the \appdata folder as as well as the itunes folder. I do not need to backup the miriad of temp files, ost files, and mp3's, etc.

I can create a filter for file types and there is a check mark for Files and Folders but it will only exclude files that are setup in the filter list.  I want it to exclude those entire folders.

Reason being is that not everyone uses the prebuilt directories under the users folder.  Some add new ones and I want to capture those.

Thanks.

Stan.