Monitor Craft Time
One of the times my kids are the most wasteful (other than mealtimes) is when they craft. From leaving markers uncapped to coloring one mark on every single page of a coloring book, crafting can be very wasteful. I know it's tempting to throw a bunch of crafts at your kids and sneak off to get things done while they're occupied, but keeping a closer eye on the projects will save your wallet in the long run.
Source: Flickr user AForestFrolic
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