My blue fannypack is my everday one, holding my phone, wallet, keys, coins, earpods, bike light, and anything else I need. Recently I realized my black one could hold all parts needed for our Star Trek viewings: all cables plus my old iPhone (fabulous how our media playing devices are getting smaller and smaller).
Fannypacks can hold more than you think. Taking things in and out of your pockets can lead to fumbling, but with fannypacks the ins and outs and opening and closing of the zippers can be far more smooth, safe, and satisfying.
I’ve had the blue one since living in San Francisco (found in the hallway of my old building, so around 2007). The black one was purchased in Berlin in 2013.