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

This $6 plastic lid that covers your plate/bowl in the microwave. No more splattery mess, and the food cooks faster and more evenly.

A keychain jewellers loupe, inexpensive but invaluable, can be used for inspect something up close, whether it’s writing on computer chips to helping with mushroom identification, to identifying makers marks on old silware.

In a similar vein, cheap usb microscopes, though less versatile are incredibly useful for soldering/inspecting PCBs

I didn’t buy this on Amazon, but the Cirkul water bottles are awesome. Cheaper overall than buying energy drinks, but much better for you, easier to swap out flavors, practically never have to wash them by design, and it keeps me way more hydrated.

Bought mine from Walmart for $20, each drink pod lasts me 3 days at $4/pod, meaning I spend about $9.33/week on average, assuming I drink as much as I do consistently. The energy drinks I like most are about $2.50/each, so that ends up with $17.5/week, and that still means I have to throw it away and find another drink for the rest of the day. This one I just refill with water.

Since the flavor strength can be adjusted with a dial, it suits pretty much anyone, and because turning the dial to 0 means just water, I can easily just switch to plain. Definitely worth the investment.