Making pens run out of ink, using up tubes of lip gloss, bottles of lotion, finishing up a box of binder clips or rubber bands. And yes, this obsession is mostly concerned with, but not entirely confined to, office supplies.
I'm almost finished with this stack of Post-Its. I'm hoping that this throw-away mechanical pencil that my work makes me use (instead of the refillable kind) runs out at the same time. It would kind of be like my nirvana.