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Smidge is good. We both had cheap head nets from camping shop and worked ok. If you are camping it really helps to find somewhere with a bit of breeze, higher up and not next to water/in a forest. One night we were destroyed (July) just after rain on the edge of a forestry road. Next night we were up higher, near Loch Lyon and it was fine.
It's worth taking repellent and a net, may be absolutely fine, but you never regret taking a spare inner tube, even if you don't use it.
You can punch a bear in the face....with midges, you punch yourself in the face.