Zipcar app already, but what if the tables were turned somewhat? For suburbanites with two cars in the garage (one of which is collecting major dust), Getaround's mobile app allows you to be Zipcar. Put simply, those with a spare vehicle (or a vehicle that routinely stays parked for certain blocks of time each day) can load their vehicle, location, schedule and price into the app, and then nearby Earthlings can poke around and see what's on offer. If they're interested in taking your ride for a spin, they can hit you up via the app and agree on how many hours / days / weeks they'll be needing it. In essence, you're looking at peer-to-peer car sharing, with Getaround snagging 30 percent of the rental rate; speaking of rate, that can range between $4 and $25 per hour, with the owner setting the price. Those based in San Francisco can tap into the source link to become involved in the beta, and don't be shocked if you see a Tesla Roadster listed for $25/hour -- that's actually one of Getaround's first customers, and you can rest assured that red beauty will be calling your name this weekend.