Keeping track of calories, weighting and calculating, is very time consuming. It makes, for example, a proper keto or methionine restricted diet (meaning also keeping track of protein ratios) practically impossible. But I found a quite generally applicable trick; maybe it can help you too, or maybe you have some such tricks to share also?
Daily intake in kilo Joules [kJ] is about 10k (quite generally, and for my exercise level etc., online estimators recommend 10k), so 10k, or 7k for caloric restriction or whatever, is the limit.
Now my trick:
Remember in terms of frequent/daily items that are 1000 or 1500 kJ. Sticking close to those for the first 5 to 6 k, I hardly need calculating yet no longer bust limits by thousands of kJ.
Sub categorization into fat or protein content of the total of fat + protein + carbs, for example avocado and walnuts have ~60% fat by weight, thus 82% in terms of kJ, helps keeping track of the desired ratios of macronutrients. Examples:
100% fat:
4 Tbsp EVOO = 1000kJ
Cooking in 40 g tallow = 1500kJ
~60% fat by weight:
7 Walnuts = 1000kJ
~60% fat by kJ, rest protein:
120g fatty mackerels = 1000kJ
3 large or 4 medium chicken eggs ~ 1000kJ
More protein:
210g beef liver = 1000kJ
Others with more carbs:
Milk, 250ml pack, and another half (125ml) = 1000kJ
Medium Apple (200g ~ 420 kJ), thus, 2.5 fruits (apple, orange, some berries) ~ 1000kJ
All my supplements, AA, creatine, Vit, ginger, turmeric, garlic,⌠together ~ 500 kJ
You see the point? No, it is not accurate, especially if not always using a scale, and all of that, so I do not give more examples, because the message is this: A few days make the effort to weight and look up and calculate a bunch of things you usually eat, all into heaps of 500, 1000, or 1500 kJ (for example 40g fat = 40 * 9 * 4.186 = 1507), and after that, you remember those heaps (like about 120 g mackerel) and never need calculating and weighting again on busy days; just eat 8 such heaps and know you had about 8000kJ, neither 12k, nor only 6000. If you also desire a limit on proteins or carbs, say, the heaps will have to reflect that.