Keeping a rangefinder readily accessible yet out of the way has long been a problem. Crooked Horn Outfitters' RF Hookup ($40; crookedhorn.com)--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.