The common wisdom for small stakes cash games has always been to play a TAG (tight and aggressive) style of poker. Here it is in a nutshell:
You should focus on playing big pairs, good aces, and Broadways. You can throw in a bunch of speculative (but still decent) hands like small and middle pairs, suited connectors, and suited aces, especially when in position.
Furthermore, you should play your hands aggressively both before and after the flop. This means having the betting lead most of the time and frequently betting for value. The odd bluff versus a tight reg in the right spot can be thrown in from time to time as well.