I've been using Skin So Soft** for years now and, for me at least, it works. For complete preservation of sanity however, long sleeves, trousers and a head-net are a must.
Reading that back, I've realised just how soft I've become after all these years in the Lowlands. As a youngster, growing up on Speyside, Midgies were an accepted part of life. They're just there, as much a part of the landscape as trees and hills. I don't remember ever having to run home, screaming like a girl.
It's reckoned they cost the Scottish tourist industry millions in lost revenue and that may be true but they also keep the property developers at bay. Scotland without the Midgie would be a very different place indeed.
And if I kill a few hundred whenever I'm out, then that's just acceptable losses.
UPDATE - 19/07/08
The briefest of searches turned up a wee 50ml skooshy bottle in Boots' travel section. Some smaller ones in amongst the hair products but they were dearer and full of stuff. Worth bearing in mind though.
*Running in circles, waving both hands in the air while screaming unintelligibly.
**The search is on for a smaller, skooshy-topped receptacle.