Have you found the 4th and 5th vents?
One each, down in the footwell.
Make sure the are open and pointing towards the feet, close the vents above the radio box and you should, with the A/C on, get nice cold feet.
Open the side vent above the radio and point at your lap and the coolness spreads.
It is important to keep the passenger vents shut unless you have a passenger.
The A/C isn't stunning, but it is reasonably effective.
Same rules apply to the heater!
