I thought I might suggest an idea for people to try out. Rather then make a list of resolutions every New Year for the last few years I tended to do something slightly different.
What I do is split the entire year into 52 weekly segments, so Jan 1st-7th is week one, 8th-14th is week two, 15th-21st is week three etc, and then I try and do something different each week.
It is mostly something simple, like a job around the house, a single product that I want to buy or a particular place I want to visit. I mark each thing off on a calendar.
I find it actually works quite well! Last year looking at the list I managed to do 48 out of the 52 weekly things, which is 92%!