Hey I'd like to contribute to this!
I'm just about done with my bachelors and will be headed to grad school next fall. I've always been a sporadic INTPf poster so whenever I do check in, I'll share my thoughts and experiences. I'll try to remember to at least post at the beginnings and ends of semesters.
To those coming up in undergrad physics: try to jump into research as early as possible and find a good mentor professor. I guess its kind of the same way in grad school as well but definitely do it in undergrad too. And then go to conferences as much as you can affordably (hopefully free through your institution) and meet lots of scientists and job offerers; the job offerers seem to be more common at engineering conferences.
My last semester I have five classes: Math Methods, Diff EQ (Don't ask me how I got this far without it), Thermodynamics, French II (which sucks because I haven't taken French I for a year and a half), and some other elective I have no idea of yet.
I finished all my core physics classes earlier than most people do because my uni is small and tends to cancel classes a lot when they don't fill up. Still managed to do fairly well in them anyway, though if I'd gone through the math sequence first before the upper level E&Ms, Classicals, and Quantums, I would've had a much easier time.
Also
definitely do as much math as you can first. A good rule would be to be a least a year ahead in math courses of wherever you are in physics. A Math PhD friend of mine told me that when it was already too late and now I'm playing catch up (I was probably a year behind in math). A positive spin on that though, is that I think I actually do better learning and practicing it on my own for the most part.
I could have gotten a 4.0 or close to it if I'd really wanted to but I knew when I started that I probably wouldn't. Some of you might know, I'm also a part-time writer and was writing a novel for the majority of my undergrad, while at the same time had a 30-35 hr a week job (which I quit in January 2014) which kept me quite busy. Oh, and a SO. Its ok to fall in love with someone since you can't really control when that happens anyway, and if you're serious about each other, you should consider them as much as you consider yourself and plan things out early.
And ride elephants as often as possible
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