DuckDuckGo Traffic
Bang commands[0] really sealed DDG for me. I know Firefox had install-your-own search plugins forever, but the total lack of friction of typing “!yt badgerbadgerbadger” to get specifically YouTube results was fantastic.!g (search on Google) also makes it far easier to switch. Don’t like the results? Prefix !g and try again.My other favorites:  !sr [name of subreddit] - much faster than “reddit.com/r/[name]”
  !r - Reddit
  !w - Wikipedia
  !cache - get Google’s cache of a page
  !hn - HN Search
  !godoc - Search godoc.org for documentation on a Go package. Your favorite language is probably represented

EDIT: formatting[0] https://duckduckgo.com/bang