Snap Lock?

When I did CAD modeling a couple of years ago in high school, I could turn on a feature called SNAP which would allow the person to easily snap one edge, corner, or whatever they liked to any point they wander close to. Is there a feature like that in blender? And if so, how do I turn it on?

http://lmgtfy.com/?q=blender+snapping The first link would simply tell you how.

that’s funny kalispero, i like it