To further elaborate the question: What are the most universally and most useful skills one could learn at a university? Currently, I am studying physics as an undergraduate and I am thinking about my career options. I have gotten opinions in other forums as well but I would really like to hear your thoughts and I also think that other LessWrongers would find such a list useful. To give you a rough idea of what I mean I have two examples:

Programming/Coding: Almost universally applicable seeing as if you can describe your process, you can automate it. It is a skill you can use in applied research, fundamental research or in a field not related to physics at all.
Statistics, the mathematics and the use of R or SAS: Again, in all fields of science and many applications statistical knowledge is required. Having a firm grasp of the mathematical concepts involved and being able to use a statistics software can only be advantageous.

What are some other skills along this line that are universally useful?