With people giving up all kinds of things for their New Year's resolutions — smoking, sugar, refined carbs, driving — the 21-Day Vegan Kickstart, which began on Jan. 1, got me wondering if any of you are giving up all animal products in 2010?Kickstart has the support of veteran vegan Alicia Silverstone, author of The Kind Diet, and she will be offering tips and advice on eating an entirely plant-based diet. After experimenting with vegetarianism in college, I am a committed omnivore who eats lower on the food chain but occasionally enjoys meat, cheese, and eggs. I have never tried to go vegan, though some days I eat that way by chance. So tell me . . .