The buses run from 4 a.m. to midnight 'at regular intervals'. [=there is the same amount of time between buses]
It's nothing special, just a 'regular' [='basic'] stereo. = It's just a 'regular old' stereo.
He is one of the store's 'regular customers'. [=customers who shop at the store frequently]
(..) He is... He is beyond awesome. He... He is "be awesome"! He is... Uh! I... I am "be awesome". I think it's about time I introduce you a regular dog peace to resistance. - Get your head out. - Why? Just do it. This... This is awesome. (..)2008 Bolt
(..) Mittens... If... If I don't chase bad guys, than what am I? I mean... What... Don't worry about it. Being a regular dog,... ...not like the greatest geek in the world, okay? Look, I'm gonna let you in, on a little secret, okay? Little known cat secret. (..)2008 Bolt