Do you use lucky eggs?

If so, how often do you like using them, is there only specific situations where you use them? Or are they considered a waste? They seem to make mass clicking more bearable for me, so I'm widely curious to know what other Pokefarmers do with them.

I prefer to use mine when I hunt legendaries, the eggs tend to take forever otherwise :p

i don't use them, i just use my quick finger breathing technique and spam click others with my exp share, saves a butt ton of money and lasts forever