It’s nearly six years since then-startup Tile launched its first object tracker for lost keys and the like. Attach a Tile as a key fob, trigger it by Bluetooth from your phone and its shrill bleeping should help you find it.
Since the first model, Tiles have evolved and evolved and, finally, I think, this range of ludicrously useful gadgets has been perfected. They come in all shapes and sizes, but are louder, work over a longer range and are more reliable than ever before.
My pick for a stocking filler? The super-thin Slim model, perfect for wallets or sticking to a phone or laptop. But special mention also to the newest, the Sticker, a button-sized, waterproof little thing with a 150ft range and three-year battery life.