My standard travel electronics accessory kit (cables, chargers, different plug tips, small battery,) lives in a LX F kit. A QR F kit serves as my travel "cosmetics" kit - everything that doesn't go into the 1L plastics bag. Some QF C kits hold assorted gizmos and other small-stuff-that-otherwise-would-be-lost-in-no-time. Mrs W uses several different Marimekko ones for her different beauty products (I will someday crack the code what goes into which one)
I/we gave away quite a few Marimekko ones and they were popular.