Parking during any professional sporting event in Denver can be a challenge. Whether you’re paying inflated prices at a nearby lot or looking for a free spot so far away that walking to and from the game is a workout in itself, the experience is far from relaxing. Last year, the Colorado Cruisers set out to remedy the problem with a new — and mostly free (the drivers work solely on tips) — service. The company manages a fleet of tricked-out hybrid golf carts, equipped with all-terrain tires, stereo systems and LED lights, that are available in downtown and surrounding neighborhoods with a reservation. The golf-cart taxis also work private events, like bachelor parties and weddings. And they travel at low speeds, which is good if you find yourself hanging drunkenly off the side.