The best, easiest, and most effective New Year’s resolution to make (perfect for procrastinators, too) is this: I resolve to make a new resolution every week (or month, or quarter or season, or….you get the idea).
It sounds like a lame suggestion, but think about it for a minute. By making this resolution, you have already made a resolution. Good for you! One down. That out of the way, you can decide what is a schedule you are most likely to stick to. Once a week? Possible, but tough. Monthly? More likely. I personally like quarterly or seasonally. The idea of having a new resolution every season is a great way to kick off a season. In spring you can resolve to plant new / more plants. In summer you can resolve to go to the beach more, or go on that trip you always wanted, or spend more time in the park reading or exercising. In fall you can resolve to get out and take in more culture. And in winter you can resolve to get in shape for next spring and fall.
Whatever you do, keep a list. You will be surprised at the end of the year how many resolutions that you made and kept.
The other good thing about this approach is that you keep up the resolutions, rather than making a bunch in January, only to have them die off.