This variation against the Caro-Kann is known as the \"Short Variation,\" named after GM Nigel Short. It's one of the most popular ways to counter Black's solid defense.
1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4e5  3... c8f5  4. g1f3  4... e7e6 