A proverb meaning that even things left behind can bring unexpected good fortune; variant of 'there's luck in leftovers.'
古本市で最後に残っていた本が名作で、まさに残り物に福ありだった。
The book left at the end of the used-book fair turned out to be a masterpiece — truly a case of 'luck in leftovers.'
夕飯の残り物をアレンジしたら好評で、残り物に福ありだと思った。
I rearranged the dinner leftovers and they were popular — I thought there really is luck in leftovers.
母はいつも『残り物に福あり』と教えて、食材を無駄にしなかった。
My mother always taught me 'there's luck in leftovers' and didn't waste ingredients.