Want to have a picnic in Dolores Park? No problem: you just go online and punk down $200 as a security deposit and perhaps another $260 for the patch of grass you wish to rent for the day.
Wait 'til Portland Parks and Recreation gets ahold of this idea; Nurse Amanda over at Portland City Council's probably already on it.
Apparently, that scheme didn't go over so well; SF Parks had planned to make this a permanent deal, but amid heavy pushback, they bunched it yesterday (for the time being). Great ideas gone bad.