I knew I was only allowed 1 FREE checked bag when I departed the U.S. and 2 FREE checked bags on the way back. So I packed a soft-sided suitcase into my hard-sided suitcase along with my clothes and things. When I arrived in Europe, I took out the 2nd bag and had plenty of room for souvenirs! This is great, since I'm a chronic overpacker and now I had so much room when I returned home! Just be sure to stay within the weight limits. I had to put some items in my carry-on bag, which also sometimes has a weight limit. The airline weighed my messenger bag!