I always brushed off those apps that save your change. Talking with a coworker showed me how it stacks, and I covered a surprise vet bill from that cash. Pretty neat for something so simple.
Honestly the best part is how you don't even feel it. You set it up once and then forget, so when you finally check it or need it, it's this random lump of cash just sitting there. It feels like finding money in a coat pocket, but way better because it's actually useful money. My coworker's story about the vet bill really hit home, it turns a gimmick into something that can actually bail you out. That passive buildup is no joke.