In reply to CantClimbTom:
Smidge from neck up and deet elsewhere (because I have a load of deet to use up and I find it maybe a bit more effective than smidge).
I think the mistakes I see people making are to fail to put repellent on early enough in anticipation (before getting out of car or tent or as soon as the wind drops) - once bitten, you get a period of itching whatever. Also people simply not putting on enough repellent; it does work but total and ample coverage is needed to stop all biting. I even know people who refuse to put repellent on at all and then moan about getting bitten or complain that they are confined to a tent or car! I regularly find myself sitting surrounded by midges in the air and on me but not getting bitten and therefore ignorable while others are going frantic with them.
I don't use a headnet, but that is just personal preference. I prefer midges crawling on me but not biting to the feel and inconvenience of a net.
Obviously I'd prefer midges not to be there, but it is almost always possible to avoid the bites and itching without being driven in to a tent. It's a matter of being determined not to let the midges win!
Also, use a flyspray before getting in to tent or car for the night.
Post edited at 09:19