To ask graduate students:
-Is the stipend received enough for the cost of living in that area?
-Any apartment complexes/neighborhoods to avoid? Is there an area of town where more graduate students typically live?
Grad students and/or profs:
-Typically how long are you expected to TA?
Thanks for your list @Orgo for days some of the questions you have I didn't think of! So this was helpful! Good luck and have fun on your visiting weekends!