In building quadcopters, one of the things that's bugged me the most is having random components like a receiver, or video transmitter (VTX), floating loose in the quadcopter. Given how little room you're given, it's completely understandable that it happens, but I'd like to avoid it.

If you have additional room vertically in your electronics stack, you can use this thing to add a layer to your stack and then zip tie down those loose components.

Or if you've purchased a frame that can support multiple stacks, like the Hyperlite Flosstyle, then you have the option to use an object like this to manage those loose components!