Keeping a rangefinder readily accessible yet out of the way has long been a problem. Crooked Horn Outfitters’ RF Hookup ($40;–a pouch that fastens your rangefinder via a sliding buckle to the company’s popular binocular harness–solves it. You can instantly range an animal and then slide the unit noiselessly back in the pouch. Or just drop it to take the shot; it won’t go anywhere. Brilliant.