1.  In an episode of Boruto, Naruto goes shopping with his daughter and pulls out his frog wallet, which holds sentimental value. 

2. The Origin of the Wallet: As an orphan, he relied on support from the Third Hokage and likely didn't inherit money from his parents. One day, Naruto saw the frog wallet in a shop but couldn't afford it.

3. Hinata's Gift: Hinata, secretly having a crush on Naruto, saw him interested in the wallet. Being from a wealthy clan, she bought it for him and left it in his room. She watched him discover it with joy, fulfilling her heart. Naruto's continued use of the wallet reflects its importance to him over the years.