Just last week I ran out of coffee filters, so I kept rinsing out the filter to reuse . I did this for 5 days beefore I got to the store to buy more. Coffee grinds go to the roses. If the stamp wasn't marked when I received mail, I would peel it off and reglue to a bill going out.
If am at a families home and there's left over scraps I ask if I can take it to my fussy peke Pookie