Ouch! My skin is sensitive enough that it would come off with the tape!

I suggest low gaiters for preventing bites through sock tops. They also keep debris (although unfortunately not dust) from getting into your shoes. There are less nasty repellents than DEET (although not as effective) for the backs of hands--citronella, eucalyptus, Avon Skin-So-Soft.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey