Unless you're playing the same course over, and over, and over — and where's the fun in that? — odds are you could use some help making sure you've got just the right club for your next shot. The Bushnell Tour V3 Rangefinder ($300) can certainly provide some. Featuring a one-hand-friendly design and 5x magnification, it uses the company's Pin Seeker and Jolt technologies to can find targets as close as 10 yards or as far away as 1,000, and can give you flag positions up to 300 yards away within a single yard of accuracy. It's also legal for tournament play, so you won't have to worry about having to give it up when you need it the most.