Well, this is a nifty idea. Sort of. San Francisco resident Jon Somoza came up with a practical and much-needed way for all of you vehicle drivers out there to find some extra parking: a site where people can rent out their unused spaces. The name of the site is GottaPark. What it does is this: provides San Francisco residents with an an online system that allows them to rent out their driveways (by the hour, day, week, month) anytime it's not in use....