Something of a tangent but I've found it really helpful in a bunch of situations to force myself to talk/think about "what's the success condition?" rather than

Something of a tangent but I've found it really helpful in a bunch of situations to force myself to talk/think about "what's the success condition?" rather than "what's the win condition?" to make it harder to accidentally fall into the trap of assuming there needs to be a loser. Positive sum games are a wonderful thing if you can arrange them.