My scholarship covers up to 4 years of study (so I could have done a dual degree for free) but I decided to stick with the JD only. I briefly considered a JD/MSW but after doing some research realized that you don't really need both, if you want to practice law you don't need the MSW and if you want to practice social work you don't really need the JD.
I'm also ready to be done with school and I'm only a 2L! I do know a surprising amount of dual degree students though (JD/PhD, JD/MSW, JD/MBA, MD/Phd)