Five Tips for Planning Effective New Year's Resolutions.

Forty-four percent of Americans make New Year's resolutions, and I know I always do. I'm more inclined to make resolutions than ever, in fact, because if my happiness project has convinced me of anything, it has convinced me that resolutions – made right – can make a huge difference in boosting happiness.

So how do you resolve well? This is trickier than it sounds. Here are some tips for making your resolutions as effective as possible. Remember, right now, you're in the planning stage...