I consider it an 80s tune even though it was actually released in late 1979.
I've even taken this opportunity to change my tagline! :-)
"It's All I Can Do" was on the 1979 Candy-O album. Definitely one of their greatest songs.
I can still smell fried clams (from Kelly's Roast Beef in Revere, MA) when I hear that song today. Though I liked "Nightspots" and "Since I Held You" almost as much.
During the summer of 1979, I was 16 years old and had just gotten my driver's license. I'd borrow my father's Chrysler Newport and tool up and down the beaches from Winthrop to Lynn, listening to that fabulous album, with a box of fried clams right beside me (and sometimes a girl). Also the Supertramp "Breakfast In America" and that Knack record were big that summer.