Tablet holder
 

can anyone suggest a tablet holder that can fit into our circular air vents? please no magnet types, no suction cups, no cup holders

You might want to double-check your laws to make sure it is OK to do this.

I know around here in NYorkistan they frown on it, and can write you up with a distracted driving ticket. I've even heard rumors that if the officer was a stickler, probably write you up for that and possibly a ticket for impersonation of police vehicles.

Though it's somehow OK for the local power authority, cable/telecom, and surveying services (USIC) to have tablet and laptop mounts in their cars/trucks.

Never quite understood this...

A while back, I was going to get a laptop mount, but after talking to several "folks" they recommended that I didn't do it.