Add an option to buy a domain name directly from your site and link it to my Click&Go account
Tevya Washburn - FS commented
Partner with Hover.com, if you do this CW. They have the same simple, straightforward mindset that CW does. Plus they offer paid email accounts. So domains and email: the 2 things that CW doesn't do that traditional hosts do.
More than one!
Partneship with quality worldwide domain registrar and add this feature as addon will be nice