People often criticize the Forkish method of managing one's starter. For example, if you were to make his double-fed sweet levain according to his instructions, you would throw away everything but 50 grams of your starter that you fed 24 hours ago, feed it 250 grams of flour and (200 grams of water) for a total of 450 grams of levain. Then you'd throw out 200 grams of the levain and feed it 500 grams of flour and 500 grams of water for a total of 1000 grams of levain, before using only 540 grams of it, and presumably, keeping the remaining 460 grams of levain only to discard 410 grams of it for the next bake.
The benefit to creating so much starter that winds up in the trash is that small errors in measurement are much less significant when dealing with huge quantities whereas the same small errors when dealing with smaller quantities are significant (in terms of percentages. What the impact on the bread is, is unknown to me).
I house my starter in a 1/2 pint mason jar. Here it is after having been fed and then used to create a levain for an overnight country brown.
My jar weighs 147 grams empty. With my culture in it above, it weighed 153 grams. Since I had 6 grams of culture it was time to feed. Rounding, I fed it 3 grams water, 3 grams AP flour and 1 gram of whole wheat flour. That turns out to be 75% hydration rather than his recommended 80%. If I was to not round, I would have fed it 2.7 grams, 2.7 grams and 0.7 grams respectively,bringing me to 79%. Given the resolution of this scale, lord only knows what I actually put into the mix. However, to be sure of getting one thing right, I measured the water with a syringe. Not because I am crazy exact, but because I have trouble pouring that little water into the jar and didn't want to over-pour by a lot.
Here it is, all fed right before going in the fridge.
Note, this is not how I normally do things. But that is because I have no real "normal" way of doing things. Sometimes, for a bake, if I have too much in the jar, I will take out a portion of my already small starter and build it in a new jar, feed the old and stick it in the fridge, and keep the new on the counter until it is ready for use. I might then have two jars in the fridge, or simply add the old and the new into a single jar, cleaning the old one.