Continuing on last week theme of downloading videos, youtube-dl is a nifty little utility that allows you to download videos to watch later, or for safekeeping.
Install with Homebrew:
brew install youtube-dl
You can now download videos from YouTube, BlipTV, Brightcove, Dailymotion, TED and many other supported sites:
$ youtube-dl https://www.youtube.com/watch?v=fK4mokbaaAU # [youtube] Setting language # [youtube] fK4mokbaaAU: Downloading webpage # [youtube] fK4mokbaaAU: Downloading video info webpage # [youtube] fK4mokbaaAU: Extracting video information # [download] Destination: XXY (Collision Course).mp4 # [download] 100% of 29.55MiB in 01:36