I often play around with new languages and other software that isn't in my distro's repo. For that, when they have a .deb available, it's often downloadable, and if I'm just playing around, I don't want to mess with my sources. So I copy the URL in my browser on my local machine, and paste it after "wget " in my terminal on the server, and go from there.

I could obviously just use curl for this, but wget requires no additional options or thought.