I'm reminded on the one hand of this quote: "If a problem cannot be solved, enlarge it." - Dwight D. Eisenhower. It is literally the opposite, but highlights the issue. If you are limited by the scale of the problem (not
enough of a thing, too expensive to run utilities to one rural farm, etc...) if you increase the thing (maybe if you can collect THE ENTIRE TOWN'S eggshells and
coffee grounds, you have more than enough... or if many farms in a row all got utility hookups it would cost less per farm). What if we ALL recycled our
cardboard boxes? then it makes sense to have one big truck drive around and pick them up on Tuesday rather than have everyone drive to the mill with a few boxes to drop off when they are able.
Now constrain the thing... Well, at least I don't have to collect
the entire town's eggshells and coffee grounds! PHEW! That limit is liberating., instead it might be just your next door neighbor's and your own. If you only have room in your house for a sewing machine in the corner and use the dining room table between meals, then you might have a difficult time reupholstering furniture as a side gig. Your entire wardrobe isn't appropriate to wear to the office, not even on a casual Friday. That narrows it down, and means the swimsuits don't need to laundered and dry for Monday morning, so that can wait.
The constraints limit our choices. The resources could be time, space, money, focus. A budget is a constraint that saves a resource (money). A schedule is a constraint on our time. A shopping list is a constraint, focusing on the essential items to get, not wandering and browsing wasting time, making impulse purchases wasting money, considering the space in the freezer you can't get six pints of ice cream, only one (okay... two. you can put one away and just eat the other when you get home).