Plastic bottles—especially the squishy ones—are amazing for making freezable ice packs. Fill them halfway with water (leave room for expansion), freeze them, and you’ve got a cold pack that won’t leak like that old gel one. Use it for lunchboxes, sore muscles, or wrapping around your head during a summer heat wave. Pro tip: wrap it in a thin towel first—direct contact is a bit rude.
Metal bottles are trickier but make fantastic pen holders on your desk. Or, if you’re feeling chaotic, fill one with rice and use it as a drum for a toddler. You’ll regret that one within ten minutes. I speak from experience. It’s loud.
