What's something you bought under $25 on Amazon that is a life changer and why?

Buzio water bottles. I specifically love the half gallon size, but that's too big for most people, id say. But they're freaking great. Keep ice for like 2 days.

Sleep mask with headphones

Wall mounted tablet holder for bed

Ergonomic crochet hooks

Smart plugs

Neck light for reading/crocheting in bed

Rechargable pepper grinder set of two

Butane torch for the kitchen

Wall Mount manual can opener