Steve dumps his clothes out on his couch, and is in the middle of folding a shirt when he realizes it’s definitely not his. For one, it has no holes in it, looks like it’s been worn maybe once, and looks more expensive than Steve’s crappy car.
Frowning, Steve starts going through the pile. Those- definitely aren’t his pants, and he doesn’t even own sheets this fancy. He picks up the bag again, searching until he finds a business card.
He calls the number.
"Hello, this is Pepper Potts, Tony’s not here right now, can I take a message?"
Steve raises his eyebrows. Someone who can afford clothes this fancy and an assistant shouldn’t be using a dry cleaner’s like the one Steve frequents. “Uh, hi. I’m Steve Rogers, I think I picked up Tony’s bag at the dry cleaner’s by accident and I’d like to return it. And hopefully get my bag back, because most of my clothes were in there.”
Looking down at the bag in his other hand, he realizes it looks less worn than Steve’s version. And there’s a different logo on the side that he probably should’ve noticed.
"You took Mr. Stark’s laundry bag," Pepper repeats slowly. "And you’d like to return it."