In his new autobiography, the Jack Duckworth actor explained that he and Dawn (Vera Duckworth) would stick notes onto props.
"We found a neat way to be reminded of our dialogue was to stick little notes on the props," he said. "As we talked over breakfast, there'd be a piece of paper stuck to the cornflakes box or the sugar bowl."
He continued: "The funniest time was during a scene in which Terry (Nigel Pivaro) was checking on a chicken in the oven. Nigel corpsed with laughter when he opened the oven door.
"He pointed to Liz and said, 'She's only put a crib sheet on the chicken's arse'."
He added: "The studio was in fits."
Tarmey recently filmed his final scenes for the ITV soap.
> Bill Tarmey: 'Leaving Corrie was painful'