"Always support the bottom"

That's what the big aluminum-foil roasting pan has embossed upon its bottom, visible from above. It's probably advice useful in many contexts. We've saved a criss-cross wire support from a more expensive pan that can usually be used with cheaper pans with a little creative re-crimping of the pan's edges (or should they be called "lips"?). The reusable support when reversed makes a good, strong armature for raising a potted houseplant up away from a shelf so that there's better air circulation and less chance of condensation.