This is Bill.
"Honey, can you pick up some things at the store?", asks his wife.
"I made you a list."
So he goes to the store.
And then comes home.
"What did you buy?"
"I bought a hat, pants, shoes, and gloves."
"Those weren't on the list!"
"Sorry! I dropped the list along the way."
The next day, his wife asks him to go to the store again.
She gives him a list.
And pins it to his coat.
He goes to the store.
And comes home again.
"What did you buy?", asks his wife.
"I bought pants, a shirt, a hat, and shoes."
"Those weren't on the list!"
"Sorry! The list got soggy and I couldn't read it."
The next day, his wife asks him to go to the store again.
She puts it in a plastic bag.
And pins it to his coat.
He goes to the store.
And comes home again.
He gets home very late!
"Honey, I bought everything you wanted."
"What did you buy?"
"I bought shoes, a hat, socks, and pants."
"But why are you so late getting home?"
"I dropped my glasses at the store."
"And couldn't read the list!"
"So I had to go and buy new glasses!"