Adding Content Type to a List

Scenario:
Often we write new content type and want to attach it to existing list.

Solution:
This can be done through code by I always avoid it if i can do the same using CAML

Code:

<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <ContentTypeBinding
    ContentTypeId="0x010100ABCDEFGHABCDEFGHABCDEFGHABCDEFGH" 
    ListUrl="/Lists/CustomList"  />
</Elements>