All good advice above.
I've never got on with skin so soft - it only seems to work if you really lather it on and I hate the oily feel (I think it drowns the midges!), so I do use a deet based repellent when they're really bad.
If you are somewhere suitable, a fire helps keep the midges down, as does any breeze (however, the breeze always tends to drop in the evening when I'm camping on the shores of a loch
)
Ticks can be a problem - make sure you inspect yourself every so often and if you find one, remove it carefully (using a specialist tool if possible) - they can spread lymes disease which can be nasty. Whatever you do don't use one of the 'folk' remedies such as covering them in vaseline, burning them etc - they just regurgitate their stomach contents into your bloodstream.
Every time I go canoeing or diving in Scotland I have a great time and every time I get home, I can't wait to get back - enjoy!
Matt