[seharper]

"We could almost buy our own outlet for that!"
"But who's gonna install it, kid? You?"
"You bet I could! I'm not such a bad electrician myself. C'mon, we don't have to sit here and---"
"We'll pay you 50 cents now, plus $3 when we get the outlet."
"$3.50? Okay, you guys got yourself an outlet.

 

[seharper]

Or you could buy spec-grade receptacles in the $3 range, and have self-grounding in metal boxes... and the ability to back-wire without the hokey backstabs being involved. It's also a much better-made outlet.

Remember replacements may need to be TR (Tamper Resistant) if Code requires TR in new work. There's no such thing as grandfathering when replacing ano outlet.