Glad that approach helps you out. Over time, minor daily actions can lead to noticeable differences. Handling portion sizes troubles quite a few individuals. Personally, I place every single day's ration into its individual resealable bag. During my daily packing routine, I collect one bag with a breast piece, one holding a pair of thighs, one with half a pound of minced turkey, along with a sardines tin. No decisions or summing required at that point.
Lately I've been working on improving my eating patterns. A minor change I've made involves sticking labels onto my prepared meals and some treats. I create basic tags showing the item name, calorie count, or serving amount. On packages of snacks I'm prone to overdoing, I include a note about the daily amount I aim for. It's a tiny routine really, yet these notes have simplified handling my food decisions quite a bit.