I saw people repacking bags at Copenhagen airport the last time I went to Germany (start of September), so they could fit everything while still barely scraping

I saw people repacking bags at Copenhagen airport the last time I went to Germany (start of September), so they could fit everything while still barely scraping in below the weight limit. Multiple heavy jackets and winter boots. For southern Germany in the late summer. It was 30 degrees C in Stuttgart when we landed. Some people...