What cognitive strategies diminish bias in decision-making beyond those outlined by Larrick?
One possible strategy is to phrase decision-making problems as questions in a foreign language. There's evidence that this attenuates at least certain kinds of cognitive bias (making you more rational and consistent) by distancing the cognitive and affective baggage that comes with the problem. See the following:

Keysar, B., Hayakawa, S.L., &amp; Sun, G.A. (2012). The Foreign-Language Effect: Thinking in a Foreign Tongue Reduces Decision Biases. Psychological Science, 23 (6), 661-668.