Just came up with another one - this for the folks that WANT to "save" chairs.
When the commuter lane first came to be on the LA freeway system, some folks were using blowup, lifesize dolls in the passenger seats so it would look like there two people in the car. I'm going to offer blowup dolls for sale (both male and female) so people can put them on the deck chairs. Wait, those are already for sale in the porn shops. Darn. Oh well, it sounded like a good idea!