I just finished packing all my stuff. Well it wasn't a lot cause I'm only away for two nights and I've got towels, toothpaste, shampoo etc. over there. I only packed some few warm sweaters and a pair of jeans and some undies cause it will for sure be a bit colder up there than here.
I use my The North Face Flyweight Rucksack Travel Pack which I love so much. It's just the most practical rucksack ever for short weekend trips like this and I actually bought it after moving to Berlin cause I knew that I will be spending all my free weekends in Lübeck anyway.
Have a nice weekend!