The Better Half | 20oz Double Wall Insulated Steel Cup

Twenty ounces of double-walled stainless steel, hand-wash finish, insulated to hold hot or cold for hours whether it's sitting on a desk or riding in a car door.

It gets given to a mother, a partner, a sister — and within a fortnight it's the only cup that person will use, which is exactly how you knew what to buy.

You've always been good at this. It isn't luck.