I've found that I snack less and concentrate better when I chew on a plastic stirrer - the kind that you get to stir your to-go coffee. I picked up this habit from my husband, who loves to chew on things. His favorite chew-toy is a plastic pen top, and gnawed pen tops and little bits of plastic litter our apartment.
Gretchen RubinI think the big myth about habits, and happiness too, is that there's somehow a magic "one size fits all" solution. That, "If it works for you it's going to work for me," and it's just a matter of figuring out what that habit would be, whether that's do it first thing in the morning, or start small, or do it for thirty days, or give yourself a cheat day.
Gretchen Rubin