As you know by now, I really like Namecheap. They are my go-to domain name registrar.
Domain Registration OR Domain Transfer Coupon: SPRINGLIGHT
Web hosting Coupon: LUVHOSTING
VPS Servers Coupon: VPS4U
When you build as many websites as I do, saving up to a buck per domain really adds up. Plus, Namecheap is really cool, easy to work with, and never presents any problems (knock on wood). I love them!
Namecheap really is the BEST domain name registrar there is!