Static/ESP confusion help!

[djaner0]

Can someone explain to me the safest way to avoid static damage to parts.
I have watched several videos and I am still unsure about exactly what I need to do or how exactly dangerous not correctly becoming grounded is.

 

[ubercake]

Best way per A+ guidelines is to use an anti-static wrist strap and attach the clip to metal on the case.

In all actuality, if you just rest your arm on the metal of the case, you accomplish the same thing.

Comparatively, the wrist strap gives your freedom of movement. That's the advantage of using it. Personally, I haven't had an issue ever with not using a wrist strap. I just rest my arm against the case.