a loop

I love the scene at 11:56 where Sandy Dennis discusses her career as a super, the merits of different items in the hardware store and the importance of overalls with a hammer loop.

"Oh ... oh. There you are."
"What is it?"
"It's a loop. There's an expert. When you have striped overalls and a loop on the side like that, that's it. That's the whole show. That's an expert, a master handyman. Do you know what you can hang in that loop? Anything – a hammer, a chisel, a ruler, a stick. It simply does not matter, as long as you have a loop. That's it."
"You know, I think you'll have a loop one day."
"Do you? Do you really think that?"
"I'm sure of it."