👉 A cache of old friends is akin to a cache of treasure, where every single one of them has been well-cherished and cherished for many years. Example: "I was visiting my friend John who lives in the 1980s, but I've met so many new people lately. One day, John passed me a cache from his old friends, filled with memories and stories he'd shared over the years. It's like having a whole bunch of priceless treasures waiting to be unearthed!"