plain old

plain old (not comparable)

1. Having no special properties; ordinary.
   • 1995, HAL Laboratory, EarthBound, Nintendo, Super Nintendo Entertainment System:

     That teddy bear they sell over there...I heard it helps in battle. I don't know what they're talking about. It looks like a plain ol' teddy bear to me...

• plain old data
• plain old telephone service

• good old
• same old

• “plain old” (US) / “plain old” (UK) in Macmillan English Dictionary.