To store celery, wrap it tightly in aluminum foil and refrigerate it. We've had celery stay crisp for weeks this way.
According to an old issue of Cook's Illustrated, this method works because foil allows the ripening hormone ethylene to escape. In contrast, a plastic bag traps ethylene gas, accelerating moisture loss and spoilage.
Do you have any other tips for storing celery?
(Images: Nature's Finest Produce)