medical adhesive tape--the kind that feels similar to duck tape--super gives me this like maximum red itchy rash but that's about it. nothing like an actually serious allergy people get.
cats (probably just the cat dander). it's not to the point where i start sneezing or anything just as soon as i get around them, but my sinuses get all screwed up if i have prolonged exposure to cats. figured this out when i had a roommate with a cat.