I switched to DuckDuckGo two years or so ago, and haven’t looked back. Some of these tips are new to me, despite my familiarity with DDG, so I highly recommend a) you switch your default search engine to duck.com, and b) you have a read of these tips.
“By now I’m sure you’ve heard of DuckDuckGo around the web (and I’ve been mentioning them for years). If you don’t already have the scoop, it’s the search engine that can serve as a complete replacement for Google (and Bing and whatever else you like), except it respects your privacy and security. And while Google does some cool tricks, DuckDuckGo does some even better ones.”