Don't worry about putting the applicators into a sharps bin. The only sharp bit of the entire kit is embedded in your arm. It is a tiny flexible filament, like a needle, but not rigid. There is nothing else sharp in the kit, so it can all be disposed of in the normal rubbish. Then when the sensor comes off that can go in the sharps bin. It isn't 'sharp' as such, but it will have some blood and interstial fluid on it, so best disposed of safely.
- just to save filling your sharps bin up too quickly.
(I am a nosey so-and-so, so I had to take everything apart and poke through the bits, when I first started using the Libre
)