I've been leading canoe trips for the past 4 summers, and for the past 3, i've avoided using bugspray.
It's not too bad if you work during the hours of daylight, and get to bed before/in twilight, because that's when the bugs really come out, at least here in Canada.
Also, campfire smoke will keep them away. And you can avoid them by living in dryer areas, away from marshes, ect..
>>1138
is on to something i think, also I should mention a lack of hygiene seems to help keep them away.
In addition, the mosquitoes that annoy you a lot here, the ones with stripey abdomens are recent migrants from Asia, so the natives wouldn't have to deal with them.