I weigh and measure everything, not to calculate CICO but to keep track of my macros and micros. I realize that the measurements are not precise but they do give a pretty good ball park estimate of what I am eating and help keep me on track. It has become a habit and it's working for me. It has certainly worked over the past 6 weeks when I was taking Marty Kendall's nutrient optimization masterclasss. I have never bought into the CICO theory of eating and weightloss but I do think macros and micros matter so I use weighing and measuring to regulate my intake. Not for everyone but works for me.