and when it starts boiling it stops getting warmer and instead simply takes boils faster and faster the more heat is applied
Isn’t that how most matter behaves? An example of a process that seemingly relies on that, is distillation, which I imagine would be impossible to do, if once the boiling point is reached, the heat didn’t [stop going towards raising the temperature and instead going towards the vaporization enthalpy]
Fly screens (Unrealistic solution but I wanted to mention it)
Can I ask why you consider that an unrealistic solution? In my experience the plant based products (lotions/patches etc) are ineffective but I haven’t tried fly screens yet.