I am not a scrap keeper and keep nothing smaller than a 5 inch charm. I keep nothing smaller than a 2 1/2 inch strip to use for scrappy binding.
However, I keep a plastic container (like those you get pretzels or
those orange yucky snack things) and toss in anything smaller. When it is full, it goes to my guild to be auctioned off. I am prolific and can full several a year. I toss in the ends I cut off binding after pressing them flat again.
I have a huge stash so must use that and not worry about crumbs.