Trophy and Achievement hunters, When do you look at a guide?

[Jizz_Beard_thePirate]

Hunting for Achievements intrigues me as much as a finding a bear for sex so Majority of the time, I do not look for achievements but I had to look at a guide once a while for some odd occasions (mostly puzzle games)... Usually the only time I watch a Lets Play is after I already beat the game and I want some awesome commentary which I will go to SSopKC