Take the vents out and put bottles in them - keeps you warm in the cold and cools the drinks in summer - you need some liquid in them though or they pop out.
Have you had a look under the front grille? Check the operation of the flaps - I believe they are meant to have some kind of foam seal. I say 'I believe' as mine appear to have been welded shut by a PO
Look under the dash and work the lever - see the rods disappearing though the front panel? Lever up to, then pull them. This cured the last bit of draught in mine. Some of the cold air rods are adjustable, some can slot in different holes on the lever to change the rod length. Mind your back.
i think i'm going to have to come to tekenders.... so i can ask lots of questions... will see if i can get it off work i hope there are ladies going!!
hmm, just because they dress like ladies, doesn't mean they are. I'm sure someone can find previous photos If I can make it I'll pm you and we can convoy down
Take your front grille off and check whether the seals are still there. then as Zed says, adjust the blue lever linkage under the dash to make sure they shut.