I'm a bit strange when I go on vacation - I never shop for clothes or souvenirs but I always buy every salty snack food I see.
On our recent trip to Dublin, I picked up every variety of Taytos (Irish inventor of the cheese and onion crisp) including Chipsticks and Mighty Munch, 2 kinds of prawn cocktail chips, worcester flavored Hunky Dorys, Thai green curry crackers and potato rings from Marks & Spencer, Hula Hoops, and something called Meanies (pickled onion flavor). A bit obsessive, I know, but Ireland's known for their potatoes, right?
No room in my luggage meant that these potato crisps were thrown into a hotel plastic laundry bag which then became my 1 allowed piece of carry-on baggage. Hubby Kris guarded the overhead compartment bin (with his life) to make sure my precious cargo didn't get crushed by someone's heavy baggage (nobody messes with my snacks!) And as usual, got interrogated by customs at JFK and had to reveal my stash (good times). It was SO worth it though :)