Quesiton: What do you use to register domain names?

Everyone, need advice.  What do you use to register domain names?  I used to use mydomain.com, but their purchasing process is ridiculous – it automatically adds crap to your cart that are a real pain in the ass to remove (things that you’ve been searching for).  Then I tried 1and1.com, but they just have a really clunky interface.  What’s a good, simple, straightforward, cheap registrar?