Perfect for our current scaldy temps and one of those “gaaah, why didn’t I think of that,” ideas, the Ice Carafe, €17.50 from Designist, is so simple and yet so fiendishly clever.

It works like this: you fill it to a set level, stick it in the freezer until frozen and then top it off with water. The result? Everyone gets a chilly glass of usice, not just the first person you serve, who’d generally have ended up with a tumbler containing an inch of water and 56 ice cubes.

How to solve the dilemma of the first person in the queue getting all the lemon slices is still on the design table, however.